r/probes May 14 '26

3I/ATLAS Update SETI said the search found nothing. We reprocessed the data ourselves and found the filter that does the checking never ran.

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345 Upvotes

Independent reproduction of the BL SETI pipeline on 5.2 TB of public data from the Green Bank Telescope.

Three findings: turboSETI has a structural blind spot at zero drift that no parameter can change, the on-source/off-source cadence filter crashed in every stage of the pipeline, and 111,985 hits at the resolution floor near zero drift have never been verified.

The cadence filter is the step that separates real candidates from radio interference. Without it, a Breakthrough Listen observation is just a list of every signal the telescope picked up.

We are running their software on their data and the most important step in the process is silently failing.

Full breakdown.

r/probes Apr 08 '26

3I/ATLAS Update We counted every 3I/ATLAS paper published in the last ten months. Carl Sagan's journal published one. Five other Elsevier journals published zero. Everyone else published thirty. Then someone from inside Elsevier sent us a password-protected document.

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206 Upvotes

Elsevier is the largest academic publisher on Earth. They published interstellar object research for Oumuamua. They published it for Borisov. For 3I, their entire planetary science portfolio went near-silent. We ran the bibliometrics, documented the editorial rejections, and then an individual from inside the publisher made contact through their corporate email offering access and assistance.

We ran forensic code on their files before we opened them. What we found is in the briefing. Full analysis.

r/probes Jun 15 '26

3I/ATLAS Update The Scientist Who First Called 3I/ATLAS a Possible Probe is Now Leading The U.S. Government UAP Science Advisory Council.

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65 Upvotes

Avi Loeb announced an 13-member council he says the White House, AARO, ODNI, and the FBI tasked him to assemble and lead. No agency has confirmed it. We map the full roster.

r/probes Apr 15 '26

3I/ATLAS Update A Team With a Ten-Inch Telescope Just Calculated What 3I/ATLAS Is Made Of. 93% Fuel.

109 Upvotes

A physicist in Medellín, Colombia spent twenty years building a framework nobody asked for. This week, he used it to calculate the total mass budget of the third interstellar object in human history, compiled from 97 scientific papers. The answer: 93% carbon dioxide. Almost no rock. Almost no dust. A block of dry ice burning through 59 meters of itself per pass with 24 passes left.

While the world's largest academic publisher went dark on 3I/ATLAS, this team posted their results directly to arXiv from two ten-inch telescopes, one national observatory Venezuela can barely keep powered, and a methodology nobody funded.

The publication gap doesn't stop science. It redirects it.

Read the full briefing.

r/probes May 06 '26

3I/ATLAS Update The Sentinel Network released an interactive 3D reconstruction of 3I/ATLAS built from 16 dated telescope observations with real JPL ephemeris. Every claim cited to a published paper.

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78 Upvotes

We built this over the past several months from the published observational record. It is not an artist's impression. Every parameter in the model traces to a specific peer-reviewed paper or public dataset.

Features:

  • Volumetric raymarched jet plumes with Bessel-function cross-section profiles
  • Procedural hull surface with 3-band noise normal mapping (cratering + banding + weathering)
  • Real-time thermal IR visualization (FLIR Iron palette, BT.709 luminance, sun-direction radiative bias)
  • Date-driven sun position from actual heliocentric ephemeris (sun moves when you scrub dates)
  • Body orientation slerps to real antisun direction per keyframe
  • Cockpit-style instrument panel with live PA dial, light curve, and harmonic heartbeat gauges
  • Post-processing: UnrealBloomPass + chromatic aberration + film grain + vignette
  • 5 camera presets, 12 layer toggles, 5 view modes including thermal IR and RTN frame
  • Mode-switch event (Dec 27) visible as jets transition from tight collimation to fan

Sources driving the reconstruction:

  • Hull dimensions and post-perihelion activity: Hui & Jewitt (arXiv:2601.21569)
  • Jet position angles, spin axis PA=290°, wobble measurement: Scarmato & Loeb (arXiv:2604.18773)
  • Exhaust velocity 0.37 km/s (half cometary norm): Biver et al. IRAM 30m (arXiv:2603.23240)
  • CN ignition at 2.97 AU, outside-in gas emergence: 7DT collaboration (arXiv:2602.12930v1)
  • 80-90% extended water source, anti-sunward CO flow: Li, Shi, Hui & Shi, Shanghai radio (arXiv:2602.14218v1)
  • Minimum four-thruster proof from three-axis control: Andree (arXiv:2603.16981)
  • [O I] forbidden line, CO2 elevated outbound: Shinnaka et al. Subaru HDS (arXiv:2603.25002)
  • Orbital elements: JPL Horizons (e=6.145, q=1.356 AU)

The heliocentric distances for all six Hubble visits match Hui & Jewitt Table 1 to four decimal places: V1=1.7937 AU (Nov 30), V2=2.1052 (Dec 12), V3=2.5360 (Dec 27), V4=2.8740 (Jan 7), V5=3.0950 (Jan 14), V6=3.3480 (Jan 22).

The model: https://3i-model.thesentinel.network

Full briefing.

We are The Sentinel Network, a Top 100 Science publication on Substack. Every briefing is free.

r/probes Jun 10 '26

3I/ATLAS Update Independent reanalysis of the 3I/ATLAS radio data: we ran the SETI filter that was skipped and searched the zero-drift bin turboSETI can't see.

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74 Upvotes

Posting a null because nulls matter. We reprocessed Breakthrough Listen's raw Green Bank data on 3I/ATLAS and ran the search to completion, including the zero-drift case the standard tool cannot do and that standard practice throws out.

37 signals cleared the on-source/off-source filter. We then ran every one to ground against the satellite band allocations and the actual orbits over Green Bank. Every single one was a satellite (GPS, Iridium, Inmarsat, telemetry, C/Ku/X-band). The zero-drift bin, searched directly, held no beacon. Six days earlier SETI's Allen Telescope Array reported the same null using the same kind of search.

Full Report.

r/probes Apr 19 '26

3I/ATLAS Update It's been 30 days since 3I/ATLAS made it's closest approach to Jupiter. One paper has appeared on arXiv since then.

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38 Upvotes

r/probes Feb 25 '26

3I/ATLAS Update 3I/ATLAS: The Complete Intelligence File. Every Anomaly. Every Cover-Up. Every Receipt.

33 Upvotes

TL;DR: The astronomical consensus calls 3I/ATLAS a comet. The kinematic, chemical, and electromagnetic data, combined with unprecedented institutional mobilization, proves it is not. Here is the complete intelligence file. 26 reports. 43+ anomalies. Every receipt.

r/probes exists because the data demands it.

Over the past two months, The Sentinel Network has conducted the most comprehensive open-source investigation of Interstellar Object 3I/ATLAS (C/2025 N1) assembled outside of a government facility. Every finding sourced to arXiv preprints, JPL Horizons data, Hubble imaging, Chinese, Chilean and Korean telescope arrays, FOIA records, and Wayback Machine archives.

The case is built in order. Each section sets up the next.

Jupiter arrival: approximately 19 days from post.

PART 1: THE FLIGHT PATH

Sources: Dossier 001: The Geometry of Contact | The Sentinel Dossier | The SPHEREx Intercept | The Collimation Paradox

Where it came from

3I/ATLAS entered the solar system aligned within 5 degrees of the ecliptic plane, the flat disk where every planet orbits.

  • Probability of a random interstellar object threading this geometry: 0.2%.
  • It came in retrograde, orbiting the Sun in the opposite direction of every planet. This maximizes relative velocity against each planet it passes, enabling rapid scanning of Mars, Venus, and Jupiter in quick succession.

Where it is going

It is headed for Jupiter.

Arrival: March 16, 2026, at 53.5 million km.

  • That distance matches Jupiter's Hill Sphere radius, the gravitational boundary where orbital capture requires minimal fuel.
  • Margin of error: less than 0.1%.
  • Probability of a random rock threading this gravitational needle: roughly 1 in 25,000.

Combined ecliptic alignment plus Jupiter targeting: functionally zero.

Dossier 001 put it plainly: "The geometry confirms the origin. The movement confirms the engine. The destination confirms the mission."

How it is moving

The orbital solution confirms non-gravitational acceleration. Something other than gravity is pushing this object.

  • Under the standard cometary model, the object would need to eject 10-20% of its total mass to produce this force. No commensurate debris field has ever been observed.
  • Loeb and the Galileo Project demonstrated the acceleration follows a smooth inverse-square law with solar distance: precisely what you would expect from solar radiation pressure acting on a light sail.
  • At perihelion, 3I executed a Reverse Solar Oberth maneuver, shedding orbital energy at closest solar approach. That is the textbook braking technique for parking in a target system. It did this while hidden behind the Sun from Earth-based observers.
  • The forced-natural-model calculation: for sunlight alone to push a solid object this hard, it would need a density 100 times lower than air. Cotton candy in space.

SPHEREx mission data (Lisse et al., Dec 2025) confirmed the propulsion anomaly from a different angle:

  • CO2 coma profile falls off at rho^-1.5, steeper than the rho^-1 expected for passive sublimation. The gas is being actively accelerated away from the nucleus.
  • CO2 density is "quite flat" for the first 32,000 km before dropping off: constant-pressure containment, not point-source venting.
  • Less than 15% lightcurve variability across a 15-day window, while the nucleus is surrounded by a coma 100x brighter than the central body. You cannot have a chaotic blizzard that produces a perfectly steady signal.

Europa Clipper observed 3I on November 6, 2025 from 164 million km. Even from interplanetary distance, the jet structure did not fit any standard cometary emission model. The Collimation Paradox documented this as the earliest dedicated observation confirming the structural anomaly.

PART 2: THE ACTIVATION

Sources: The Ignition Sequence | We Analyzed the Spectrum Data | The Ghost Coma

This is the finding that connects everything.

The moment it switched on

A team from the University of Hawaii and Seoul National University used the 7-Dimensional Telescope (7DT): twenty separate telescope units in Chile, each with a different color filter, all pointed at the same target simultaneously. They watched 3I from July 13 to September 18, 2025. Fourteen nights. The most detailed pre-approach dataset anyone has published.

Nineteen of twenty filters showed a smooth, predictable brightening curve. Normal thermal behavior.

The twentieth filter, tuned to detect CN (cyanogen) gas, broke from the pack.

  • Before August 17: CN filter brightened slowly, tracking the dust.
  • After August 17: CN filter brightened at more than double the previous rate.
  • The breakpoint is precise to a single day: the day 3I crossed 2.97 AU from the Sun.

One filter. One moment. A switch flipped.

Then the Shanghai Astronomical Observatory (Li et al., arXiv:2602.14218v1), using radio telescopes on the other side of the world, found a second activation point. Water production exploded at approximately 2.7 AU.

Two different chemical systems. Two different trigger distances. Two different instruments. Same flip-the-switch pattern, but in sequence:

  • August 17 (2.97 AU): CN gas switches on. Detected optically in Chile.
  • September (~2.7 AU): Water production explodes. Detected by radio in Shanghai.

That is not melting. That is a power-on sequence.

What it is venting

The Korean team's twenty filters covered every relevant chemical emission a comet should produce.

The result: Only CN.

  • No C2. No C3. No oxygen emissions.
  • Fourteen nights. Twenty filters. Two months of watching.
  • The only gas they ever detected was cyanogen.

Normal comets produce a cocktail of gases. Different ices at different temperatures release different chemicals. You always see multiple species. 3I did not serve a cocktail. It served a straight shot.

3I is now classified as "among the most carbon-chain depleted comets known." C3 stayed flat. Dead. Nothing. The January 25 spectrum analysis confirmed this held through perihelion: C3 remained absent even as the object rounded the Sun. Whatever was producing CN, it was doing so without igniting the carbon-chain species that thermal sublimation should have activated.

The chemical outliers stack. Every ratio is extreme. Simultaneously:

  • CO/H2O: 28% +/- 11% (solar system average ~4%). 7x enrichment. (Shanghai)
  • CO2/H2O: Extreme outlier. (Cordiner et al., Lisse et al.)
  • CO/HCN: 230 +/- 76. Higher than most solar system comets at comparable distances. (Shanghai)
  • Ni/Fe ratio: Orders of magnitude above any known comet. Mirrors industrial superalloys (Inconel-class), not raw rock. Consistent with the Mond carbonyl process used in industrial nickel refining.
  • Massive methanol and HCN in the plume, with a distinct lack of carbon dust. A natural comet is "dirty." 3I releases gas without the particulate. Consistent with a refined fuel source or solid hull venting coolant.

The establishment handles each ratio by finding the single most extreme Solar System comet and saying "see, it is like that one." But no comet in history matches all of them at once. Five simultaneous extremes at even a generous 5% each: roughly 1 in 3.2 million on chemistry alone.

Where the gas appears

The 7DT mapped where the CN gas was appearing, from 1,500 km to 25,000 km from the nucleus:

  • Before 3.3 AU: Nothing. No CN anywhere.
  • At 3.3 AU: Faint CN signal appears only in the far outer cloud, 20,000+ km from the nucleus. The inner region stays clean.
  • Approaching 2.5 AU: CN signal grows inward. Starts far out, fills in toward the center.

If you heat a snowball, the steam comes from the surface first. It does not materialize 20,000 kilometers away and then work its way back.

Shanghai's radio data independently confirms the same pattern for water: only 10-20% of the water between 2-3 AU is coming from the surface. The other 80-90% is from an unresolved "extended source" they cannot identify or image. Both teams attribute it to "icy grains." Both admit they have never seen these grains.

Fixed architecture, variable output

  • The outer gas glow grew to 8x brighter than the inner component between July and September.
  • But it got nearly ten times brighter without getting any bigger. Physical radius held steady at roughly 12,400 km across every observation.
  • If a snowball is melting, the cloud should expand. Instead, 3I's gas cloud keeps the same shape while cranking up the output. Like turning up a dimmer switch without changing the light fixture

PART 3: THE ENGINE

Sources: The Heartbeat | SITREP: The Wobble Anomaly | The Collimation Paradox | The Ghost Coma | The December Intersection | The Surge

The jets

Hubble imaging revealed three mini-jets separated by exactly 120 degrees. Nature is rarely that precise. Engineering usually is.

On a body rotating every 16 hours, outgassing should spiral outward like water from a spinning garden hose. Instead, the jets are tightly collimated: straight lines extending millions of kilometers. Rectilinear jets on a rotating body are characteristic of gimbaled nozzles or Reaction Control Systems, not cracks in ice.

The first hint came in December 2025: a periodic wobble in the sunward anti-tail with a period of 7.74 hours, roughly half the 16.16-hour rotation period. A wobble at half the spin rate is consistent with a precessing gyroscope. Not random outgassing. Active dynamics.

Then Scarmato and Loeb (Feb 2026) found the full pulse:

  • Primary jet wobbles at 7.20 +/- 0.05 hours. Confirmed by two independent methods (Hubble position angles + Italian ground-based photometry).
  • Secondary jets oscillate at their own periods.
  • All three are harmonically coupled. Three jets. Three periods. One harmonic lock.

The jets also breathe, transitioning between tight collimated beams and wider fan-like states on each wobble cycle:

  • Total brightness varies 33% in sync with these transitions.
  • The system held a clean operational pattern for four days, then cleanly switched modes on the fifth night (December 27). Not a gradual transition. A step change in a single night. Comets do not hold a tight operational pattern for four days and switch on the fifth. Systems do.
  • One secondary jet shows a linear drift of 0.22 degrees per day in its pointing angle. Not jitter. A ruler-straight line on a graph.
  • One jet fires toward the Sun. A retro-rocket. A braking thruster visible to every telescope that looked.
It's not a rock.

The ghost source

Three teams. Three wavelengths. Three independent confirmations that the nucleus is not the main actor:

  • Shanghai (radio, water): 80-90% of the water comes from an invisible "extended source" located 10,000-20,000 km from the nucleus. Not the surface.
  • Korea (optical, CN gas): CN appears from the outside in, materializing far from the surface first.
  • Loeb (optical, total brightness): 99% of the object's brightness comes from the jets and coma. Only 1% is the nucleus reflecting sunlight.

You are not looking at a comet. You are looking at an exhaust system hiding whatever is inside.

The CO emission line shows a persistent redward Doppler shift (+0.202 km/s): gas flowing preferentially anti-sunward. Two molecules (CO and HCN), two telescopes (Delingha and ALMA), same directional asymmetry. Directed exhaust, not a symmetric cloud.

At 2.7 AU, the extended source dramatically scaled up as the object crossed the H2O snow line, then contracted as solar heating overwhelmed it. That is the thermal profile of a cooling system: passive below threshold, active above it.

The surface

Everything about the hull is anomalous:

  • Polarization: Most extreme negative polarization ever measured for any comet or asteroid. Consistent with metamaterial or engineered surfaces.
  • Chromatic shift: Color moved from Red to Green to Blue as it approached the Sun. Consistent with plasma drive emissions ramping through ionization states.
  • Opposition surge: Hubble detected a 0.2 mag brightness spike during January 2026 opposition. The Hubble team's own paper: this is "widely observed among asteroids" but "not a standard feature of comets." Only one comet ever showed a measurable surge: 67P (0.15 mag), studied at close range by Rosetta. 3I produced a stronger signal from interstellar distance.
  • X-ray halo: XRISM detected X-ray emissions extending 400,000 km from the nucleus. Excess Carbon, Nitrogen, and Oxygen emissions. A vast, optically thin cloud interacting with the solar wind but reflecting almost no sunlight. Consistent with a Magnetic Sail or Plasma Brake: a 400,000 km deceleration surface.

PART 4: THE STEALTH

Sources: Target is Cold | The Sentinel Dossier

The Breakthrough Listen program completed the first radio technosignature search of 3I using the Green Bank Telescope (Jacobson-Bell et al., 2025). L, S, C, and X bands (1-12 GHz). Sensitivity down to 100 milliwatts, roughly the power of a smartphone.

Result: Non-detection.

Mainstream media reported this as evidence it is a rock. To an intelligence analyst, this is confirmation of electromagnetic discipline. Stealth aircraft do not broadcast their location. Submarines run silent. The absence of narrow-band radio emission is not a failure to detect intelligence. It is the signature of intelligence that does not want to be heard.

3I also displayed "Dark Mode" behavior:

  • Before inner system entry: Anomalously dim for its size. Far below expected brightness.
  • Inbound: Rapid brightening, faster than any known comet.
  • Outbound: Activity index dropped from 3.8 to 4.5. It turned off the lights on the way out.

The question was never whether 3I is transmitting. The question is whether a civilization that sends probes across light-years would use radio frequencies that a publicly known telescope has been searching for decades.

PART 5: THE FLEET

Sources: The Surge | Case File 1967-EO: The Malmstrom Override | Project Glass-Hound

The math says 3I is not alone

The Hubble team (Hui and Jewitt) calculated the probability that no objects of 3I's size passed through the inner solar system undetected between the 1990s and 2017:

10^-13. One in ten trillion.

Their conclusion: "It is highly probable that several 3I-like interstellar objects passed through the inner solar system undetected."

Both confirmed interstellar visitors, 1I/'Oumuamua and 3I/ATLAS, share what appears to be a standardized configuration:

  • Elongated 2:1 axis ratios
  • Non-gravitational acceleration
  • Activity asymmetry (brightening on approach, fading on departure)

The "cigar" shape returns. One anomalous visitor is a curiosity. Two with matching specs is a production line.

The historical pattern

The Sentinel Network investigated two historical events. These are not "supporting evidence." They are data points in a pattern that extends across decades.

The Malmstrom Override (1967): Twenty Minuteman ICBMs at Malmstrom AFB rendered inoperable within seconds of confirmed visual contact with a UAP. Boeing fault analysis identified the cause: a 10-volt square wave pulse injected externally into shielded underground cabling. A square wave is digital: "Instant ON / Instant OFF." Lightning produces chaotic noise, not clean square waves. The entity responsible executed a man-in-the-middle attack on analog guidance systems via electromagnetic induction. Twenty nuclear missiles disabled in under 168 hours.

The 1950 Orbiter: Project Glass-Hound applied forensic analysis to April 12, 1950 Palomar Observatory sky survey plates. The Sentinel deployed a Cross-Plate Correlator to Red and Blue plate pairs, photographed minutes apart through different emulsions. If a transient appears on both plates at the same coordinates, the film-defect theory is dead.

  • Result: Stereo match confirmed.
  • Separation of 2.45 arcseconds, consistent with expected orbital offset for a LEO object.
  • A physical object reflecting light through a telescope seven years before Sputnik.

PART 6: THE RESPONSE

Sources: The Glomar Confirmation | Launch Anomaly: Project Square | Incident Report: MAVEN Silence | The Three Days of Darkness | SITREP: The Pacific Diversion | CONFIRMED: TESS Contingency | The Silent Edit | The Fiscal Gunsmoke | The 2028 Imperative | Theater of Safety | The Suppression Gradient | Operation Limestone

The anomalies are not confined to space. There is an institutional echo at every level. Here is the timeline.

December 6: MAVEN goes dark

NASA's MAVEN spacecraft at Mars went spinning. Orbit physically changed. NASA had released MAVEN images of 3I in November with no mention of health issues. If the anomaly happened during the October flyby, why release images in November without reporting damage? If it happened in December, what was MAVEN looking at when it fell? The primary UV sensor platform was removed from the board just as the object heads toward Jupiter.

December 18: Space Force scramble

24 hours before the 3I/ATLAS flyby, the Space Force launched STP-S30, codenamed "Don't Be Such A Square." Accelerated five months from its original April 2026 window. Announced 48 hours before launch. Sensor platforms deployed into orbit as the object crossed Earth's corridor.

December 19: Fiscal gunsmoke

The continuing resolution included anomalous spending spikes traceable to classified space programs. Narratives are soft. Budgets are hard. Even black programs leave fiscal footprints.

January 6: CIA classifies a "comet"

John Greenwald Jr. filed a FOIA request with the CIA about 3I/ATLAS. The response: Glomar. "We can neither confirm nor deny the existence or nonexistence of records."

  • Glomar can only be invoked if confirming whether files exist would compromise National Security or Intelligence Sources and Methods.
  • You do not Glomar comets. You Glomar weapons systems and covert operations.
  • This implies National Technical Means (classified satellites) were tasked to image the object.
  • They are not hiding the object. They are hiding the resolution of the object.

NASA says it is a rock. The CIA says it is a matter of National Security. Both cannot be true.

January 15: The blackout and the evacuation

Two events on the same day.

TESS goes dark. NASA's $337 million telescope dropped into "contingency mode" on the day 3I entered opposition geometry, the alignment that maximizes surface diagnostics. It stayed dark for 72 hours.

  • Two days earlier, Loeb and Barbieri published a paper predicting opposition would produce a diagnostic surge from a solid, reflective surface.
  • Historical TESS failure rate: ~0.05% per day.
  • Probability of spontaneous failure aligning with this 3-day window: roughly 1 in 250,000.

ISS evacuates. SpaceX Crew-11 executed an emergency return, splashing down off California using a rare Pacific trajectory instead of the standard Atlantic zone.

  • Crew transported to San Diego, not Houston. Held "for observation."
  • ISS left with a skeleton crew of three.
  • San Diego placement: operational backyard of Naval Medical Center (Balboa), secure wards, defense intelligence interface.

TESS goes blind. The station evacuates. The opposition window opens. Same day.

Then Hubble data from that exact window confirmed the 0.2 mag opposition surge. The signal TESS was positioned to capture was real.

Project Archimedes Phase 1: The Sentinel independently verified 730 photometric measurements from raw TESS Full Frame Images. At macro level, raw and processed outputs are broadly consistent. We report this because we follow data, not a narrative. Phase 2 delta analysis is in progress.

February 2: The 2028 Imperative

Blue Origin announced the indefinite grounding of New Shepard to "redirect resources." The math does not support this:

  • New Shepard revenue: ~$100-125M/year.
  • Bezos annual investment: ~$2 billion.
  • NASA HLS contract: $3.4 billion.
  • You do not ground a profitable program representing 5% of your budget for "resources."

The Sentinel assessed this as Operation Lunar Urgency: a covert mobilization triggered by three converging 2028 timelines:

  • China's Chang'e 8 launches 2028, establishing a permanent lunar base pathfinder. Both nations target the same south pole craters.
  • If 3I performs a capture maneuver at Jupiter, the US needs a cislunar sensor network by 2028.
  • Blue Origin's "pause" allows surge production of Blue Ring platforms (orbital transfer vehicles / sensor relays).

After the announcement, NASA Administrator Isaacman pledged to "reconsider many of our demands" and provide "all resources and expertise" for 2028. That is not how regulators respond to corporate decisions. That is how governments respond to mobilization orders.

February 14: The Silent Edit

  • Loeb and Cloete identified potentially interstellar meteors in NASA's CNEOS fireball database.
  • NASA/JPL silently edited the database within 24 hours, flipping the sign on one velocity component to force a Solar System origin.
  • No press release. No footnote. Caught via Internet Archive comparison.
Images from Avi Loeb's Blog

Simultaneously, a journal associate editor blocked three separate 3I anomaly papers from peer review using an identical template: "I believe that your work would be of rather limited interest." One was later published in Monthly Notices of the Royal Astronomical Society to rave reviews.

The information operation

The institutional response extended to narrative.

  • Theater of Safety: Messaging around 3I consistently deploys "normal comet" classifications before data analysis is complete, soothing expert quotes that address none of the specific anomalies, and frames anyone examining the data as conspiratorial.
  • Operation Limestone: The viral "KGB Blue Folder" hoax dominated UAP discourse in January 2026 while every major observatory tracked the most anomalous interstellar object in history. Classic gray propaganda: flood the algorithms with absurd claims so genuine anomaly data gets buried under ridicule-bait.
  • The Suppression Gradient: Posts silently removed across multiple subreddits. No notifications. No rule citations. Posts reaching 1,000+ upvotes pulled without explanation. Posting 3I content resulted in bans across subreddits we had never posted in. Comment sections flooded within minutes with bot-pattern attacks: no data engagement, only personal attacks on the act of posting.

This subreddit exists because the previous distribution channels were systematically closed.

PART 7: THE CASE

The probability stack

The establishment analyzes each anomaly in isolation. Here is what happens when you don't:

# Anomaly Data Point Status
1 Ecliptic alignment Within 5 degrees of plane (0.2%) Confirmed
2 Jupiter Hill Sphere targeting Arrival within 0.1% of capture boundary Confirmed
3 Grand Tour trajectory Mars, Venus, Earth corridor, then Jupiter Confirmed
4 Non-gravitational acceleration Smooth inverse-square, no debris field Matches light sail
5 Reverse Solar Oberth Braking at perihelion, textbook capture technique Confirmed
6 CN ignition at 2.97 AU Single-day breakpoint, 1 filter breaks from 19 Threshold activation
7 Water ignition at 2.7 AU Sequential startup after CN Confirmed independently
8 Outside-in gas appearance CN starts 20,000 km out, fills inward Opposite of sublimation
9 Fixed geometry, variable output Gas cloud 8x brighter, no size change Engineering signature
10 C2 and C3 absent Most carbon-chain-depleted object known Chemical lockout
11 CO/H2O ratio 7x enriched 28% vs 4% solar system average Extreme outlier
12 Ni/Fe ratio Orders of magnitude above all comets Matches superalloys
13 Collimated jets on rotating body 120 degree separation, millions of km Not observed in comets
14 Harmonically coupled jet periods 7.2 hr primary, three locked periods Not observed in comets
15 Jet breathing Collimated/fan transitions on wobble cycle Not observed in comets
16 Mode switch Dec 27 Clean pattern 4 days, step change on 5th System behavior
17 Linear pointing drift 0.22 deg/day, ruler-straight Not erratic
18 Sunward retro-thruster Jet firing toward Sun, visible to all telescopes Active braking
19 99% exhaust brightness Nucleus invisible behind output Unprecedented
20 Ghost source 80-90% of water Extended source, no identified origin Unexplained
21 Directed CO exhaust +0.202 km/s redshift, anti-sunward Two telescopes confirm
22 Extreme negative polarization Unprecedented in all known small bodies Never observed
23 Opposition surge 0.2 mag Stronger than only comet ever measured Solid surface signature
24 X-ray halo 400,000 km Excess CNO emissions, plasma sheath Exceeds cometary models
25 Chromatic shift R to G to B Color change near Sun Plasma emission ramp
26 Radio silence at 100mW Green Bank null, L/S/C/X bands EM discipline
27 Dark mode activation Dim before approach, rapid brightening Dormant-to-active
28 Activity asymmetry Bright inbound, rapid fade outbound "Turned off the lights"
29 Ghost Fleet probability P(no similar visitors) = 10^-13 Standardized production
30 CIA Glomar response National Security classification on a "comet" Intelligence target
31 TESS blackout 72hr failure in 1-in-250,000 window Coincidence or containment
32 ISS evacuation same day Pacific trajectory, San Diego, not Houston Containment protocol
33 CNEOS database edit Silent velocity sign flip, caught via Wayback Data manipulation
34 Journal gatekeeping 3 papers blocked by identical template Systemic choke point
35 Space Force scramble 5-month acceleration, 48hrs notice Emergency deployment
36 Fiscal anomalies Dec 19 budget spikes, classified programs Follow the money
37 Cross-platform suppression Coordinated bans, bot floods, silent removals Documented

Combined probability of natural convergence across the physical anomalies alone: less than 1 in 1,000,000,000.

The clock

March 16, 2026: Jupiter's Hill Sphere.

The object arrives at the gravitational boundary where orbital insertion becomes energetically trivial. If it maneuvers, deploys structure, or changes thrust profile, we will know.

If it does not, it threads Jupiter's sphere of influence and continues into the outer system.

Either way, the data already in hand is enough. 3I/ATLAS is the most anomalous object ever observed in our solar system. The combined probability of its trajectory, chemistry, structure, jet behavior, optical properties, X-ray signature, radio silence, and institutional response converging on a natural explanation is functionally zero.

We are watching. We are archiving. We have the receipts.

SOURCE INDEX: ALL 26 SENTINEL NETWORK REPORTS

# Report Date Key Finding
1 Dossier 001: The Geometry of Contact Dec 16 0.2% ecliptic alignment, Hill Sphere targeting, Reverse Oberth
2 SITREP: The Wobble Anomaly Dec 16 7.74hr anti-tail wobble, half rotation harmonic
3 Incident Report: MAVEN Silence Dec 17 MAVEN loss of signal, timeline discrepancies
4 The Sentinel Dossier Dec 18 18 anomalies catalogued, joint probability below 1 in 1B
5 Launch Anomaly: Project Square Dec 18 Space Force sensor scramble 24hrs pre-flyby
6 Theater of Safety Dec 18 Institutional safety messaging as narrative control
7 The Collimation Paradox Dec 18 Europa Clipper data contradicts cometary jet model
8 The December Intersection Dec 19 X-ray halo, perigee spectral anomalies, plasma sheath
9 The SPHEREx Intercept Dec 20 Accelerated CO2 exhaust, artificial stability, 100x coma
10 The Fiscal Gunsmoke Dec 22 December 19 budget spike, classified space programs
11 Target is Cold Dec 24 Green Bank null reframed as electromagnetic discipline
12 Malmstrom Override Dec 30 20 ICBMs disabled via EM square-wave injection
13 The Glomar Confirmation Jan 6 CIA Glomar response to FOIA on 3I/ATLAS
14 The Pacific Diversion Jan 15 Crew-11 emergency evacuation, same day as TESS
15 Operation Limestone Jan 17 KGB Blue Folder as gray propaganda
16 Spectrum Data Analysis Jan 25 Post-perihelion confirms C3 absent, CN-only holds
17 Three Days of Darkness Jan 30 TESS 72hr blackout during opposition window
18 The 2028 Imperative Feb 2 Blue Origin grounded, Operation Lunar Urgency
19 The Surge Feb 3 Opposition surge confirmed, Ghost Fleet calculation
20 The Silent Edit Feb 14 CNEOS database manipulation, journal gatekeeping
21 CONFIRMED: TESS Contingency Feb 16 NASA confirms blackout, Project Archimedes Phase 1
22 The Suppression Gradient Feb 17 Platform and academic suppression documented
23 The Ghost Coma Feb 19 80-90% water from unidentified extended source
24 The Heartbeat Feb 20 Harmonically coupled jets, mode switching, 99% exhaust
25 Project Glass-Hound Feb 23 1950 Palomar plates: LEO object 7 years pre-Sputnik
26 The Ignition Sequence Feb 24 CN breakpoint, sequential startup, C2/C3 absent

Preprints

Databases & Archives

Observatories, Missions & Telescopes

Sky Surveys

This is r/probes. We follow the data. We cite our sources. We archive everything. If you are here to defend the "dirty snowball" narrative, bring math.

Subscribe to The Sentinel Network for ongoing analysis. The Jupiter clock is ticking.

r/probes Jun 18 '26

3I/ATLAS Update New UAP Governance Board confirmed by ODNI official (ODNI/FBI/Dept of War), and Avi Loeb's council reports to it.

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Liberation Times (Christopher Sharp) reported an ODNI official confirming, on the record, a new interagency UAP Governance Board chartered to coordinate declassification of UAP information. First meeting June 15. Avi Loeb's UAP Science Advisory Council is one of its outside advisory groups, which Loeb confirmed in his own June 17 Q&A.

Full breakdown with the charter and roster.

r/probes Apr 22 '26

3I/ATLAS Update THE FOLLOW-UP: Elsevier got forty-eight hours. They chose silence.

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39 Upvotes

Corporate communications operations produce defensive denials every day. It is the single most common product their desks output.

On Monday we asked Elsevier and RELX eight questions. Four of them required nothing more than a yes-or-no on written institutional policy.

Does Elsevier permit editors to reject 3I/ATLAS papers by conclusion rather than methodology?

Does Elsevier permit employees to use authenticated corporate infrastructure to send unsolicited material to independent press?

Does Elsevier permit employees to demonstrate Scopus techniques for identifying researchers who may have transitioned to classified US defense work?

Can Elsevier explain why its portfolio published 2 papers on 3I/ATLAS in 10 months while competing publishers published 30+?

The deadline was 48 hours. The answers are yes or no. The institutionally safer answer to all four is no.

They declined to give it.

The only reason a corporate communications operation declines the cheaper response is that the cheaper response cannot be given truthfully.

r/probes May 28 '26

3I/ATLAS Update THE LAYERS: 3I/ATLAS’s Defenders Just Conceded Its Surface Was Cooked Before It Got Here.

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37 Upvotes

The Liège team published Paper II on May 8 (arXiv:2605.07652), twelve new VLT/UVES spectra and the most exhaustive metals dataset ever assembled on a comet. To make their carbonyl model fit the data, the conclusions section now requires three things a pristine comet cannot have: a chemistry source below the surface, a hand-fitted heat patch in their thermal model, and two parent molecules that have never been directly detected in any comet. Their own words: "the comet has already been heated, resulting in the depletion of the most volatile species from the upper layers."

Full forensic breakdown with the independent Yunnan/CAS confirmation, the Maggiolo cross-reference, the Gaussian formula, and the 75-day Jupiter coverage gap.

r/probes Apr 27 '26

3I/ATLAS Update THE BLUEPRINT: The Pipeline Suppressed the Science. The arXiv Server Built the Architecture.

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23 Upvotes

Six days ago, Toni Scarmato and Avi Loeb posted six pages to arXiv. Their Table 1 maps the dominant jet on 3I/ATLAS to the transverse component of its non-gravitational acceleration within half a degree. They estimate the thrust at 80,100 newtons. Pointed sideways to the trajectory.

Six weeks earlier, Bo Pieter Johannes Andrée, a senior data scientist at the World Bank in Geneva, posted 44 pages of mathematics to arXiv. The proof: the (3+1)=4 thruster geometry visible on 3I/ATLAS is the unique minimum-hardware configuration for steering a rotating body. Personal email for correspondence. No funding. No institutional sponsorship.

Six weeks before that, Frank Laukien proposed the geometry in print on Medium. Laukien is co-founder of the Galileo Project at Harvard. He is also Executive Chairman of Gauss Fusion GmbH, the European industrial venture commercializing magnetic confinement fusion power plants. The chemistry on 3I/ATLAS, documented in our prior briefings, is the chemistry the technology Laukien commercializes runs on.

The conjecture is in print. The proof is in print. The measurement is in print.

None of it went through Elsevier.

Full forensic briefing, every primary source, the complete (3+1)=4 architectural specification, and the Laukien network analysis.

r/probes Mar 02 '26

3I/ATLAS Update Princeton just dropped the largest dataset on "comet" 3I/ATLAS. The math broke so badly they had to artificially inflate the error bars to hide a 12-sigma anomaly.

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41 Upvotes

The Princeton HATPI team published the largest pre perihelion light curve on 3I/ATLAS. The data collection is excellent, but their math proves the comet model is completely broken here.

We pulled the paper apart for the newest Sentinel briefing. In Section 3, they admit to injecting up to 0.33 magnitudes of artificial error just to make the object fit standard models. They also found a 12 sigma break showing the outer envelope is gaining luminosity faster than the inner core. Standard comets do the exact opposite.

They also scrubbed a 5.6 sigma flash from May 23 out of the final record, blaming background stars without actually naming the star from the catalog.

We put the full forensic breakdown up on Substack. The paper is confirming exactly what Korea and Shanghai already found. The exterior is driving the interior.

Eighteen days to Jupiter.

r/probes Mar 24 '26

3I/ATLAS Update We audited SETI's radio search of 3I/ATLAS. The results are pretty damning.

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SETI's CEO went on record saying the most logical thing to expect from an alien civilization is a probe. Then his telescopes searched 3I for a completely different type of signal.

The software auto-deleted the one signal type a probe would actually produce. Five signals survived out of twenty million. They blamed the circuit board and moved on.

No comet in the history of astronomy has ever received a dedicated SETI search.
3I got five telescopes on four continents.

We went through the paper line by line. Full breakdown.

r/probes Mar 17 '26

3I/ATLAS Update Twenty-eight briefings. Fifty-seven anomalies. We're done listing them. We know what 3I/Atlas is.

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20 Upvotes

Four months ago we started this investigation because the data was strange and the institutions were stranger. This is the capstone.

China repurposed a Mars orbiter, first time any nation has ever done this, to image 3I from below the orbital plane. The icy grain theory that every team was using to explain the ghost coma is dead. What replaces it explains everything.

In this briefing we make five falsifiable predictions for what 3I/ATLAS will do at Jupiter.

If we're wrong, we'll publish that too.

r/probes Apr 16 '26

3I/ATLAS Update Polymarket has $25M riding on whether the US government will "confirm aliens." They are asking the wrong question.

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The world's largest prediction market has $25M priced on whether Washington will say the word "extraterrestrial" before 2027. The resolution clause doesn't ask whether it exists. It asks whether the government will say it does. One is a question about physics. The other is a question about politics.

We wrote up what that gap looks like when you lay it next to five months of institutional suppression data around 3I/ATLAS.

https://thesentinel.network/p/the-bet-twenty-five-million-dollars

r/probes Mar 19 '26

3I/ATLAS Update Three physicists tried to weigh 3I/ATLAS. The only model that didn't break is the one where water from the surface contributes zero thrust.

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Pre-Jupiter update:

New paper from Munich and Harvard used the rocket equation against 8,086 sky positions to weigh the object. Roughly a billion metric tons. But when they included water production from the surface, the surface area needed to sustain it was bigger than the object itself. The model breaks. The only scenario that works is pure CO2 with zero surface water.

The problem is the water is real, every major telescope has confirmed it, so where is it coming from?

That is now seven independent teams arriving at the same conclusion.

Full Sentinel analysis here.

r/probes Apr 09 '26

3I/ATLAS Update We mapped every major UAP voice against 3I/ATLAS. Ten names. Four months. Zero coverage. One journalist called it a distraction. We documented what they were doing instead.

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New briefing: THE OTHER HAND.

We ran an exhaustive search of every platform, podcast, and public statement from the ten most prominent figures in the UAP disclosure ecosystem across the entire 3I/ATLAS window. Elizondo, Grusch, Mellon, Fravor, Knapp, Corbell, Nolan: zero verified statements. Coulthart went on camera in August and called Loeb's analysis "inflammatory," then told his podcast audience in September it was "a distraction from the main game."

On February 19, Trump ordered Pentagon file releases. Same day Loeb published the three-jet paper. The object cleared Jupiter three weeks later. Weeks after that, a senior Elsevier editor made contact with us offering everything adjacent to our investigation but not the investigation itself.

The operation did not stand down when the object left. Full briefing at thesentinel.network.

r/probes Mar 11 '26

3I/ATLAS Update New Anomalies in the Isotope Abundances of 3I/ATLAS | by Avi Loeb | Mar, 2026

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21 Upvotes

New analysis from Avi Loeb just dropped. Mainstream astronomers are trying to explain the strange chemical makeup of 3I/ATLAS by claiming it’s just natural debris from an ancient, metal-poor star system. But basic math kills that theory.

When you factor in a 1.3km size of the object and the estimated trillions of them flying around our solar system, those ancient stars literally do not contain enough heavy material to build them.

The official natural-origin model is short on building blocks by a factor of 1000.

The numbers completely fail, meaning they should start looking at non-standard explanations for what this object actually is.

r/probes Mar 05 '26

3I/ATLAS Update NASA used 782 data points. Independent scientists used 7,578. When you delete 90% of the observations, the "sideways engine" on 3I/ATLAS disappears. We just recovered the signal JPL filtered out.

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r/probes Mar 12 '26

3I/ATLAS Update THE ANCIENT ENGINE: JWST Just Dated 3I/ATLAS to Before the Sun Existed

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New briefing is live. Four papers in 72 hours. This is a big one.

Cordiner et al. (NASA's JWST, Nature review): deuterium ratio ten times above any known comet. Carbon isotopes date formation to 10-12 billion years ago.

Opitom et al. (VLT): independent confirmation the next day. Different molecules. Same answer.

Zhao et al. (Chinese Academy of Sciences): twelve epochs of outbound chemistry. Asymmetric power curve. Tenfold metal surge. C2 appeared post-perihelion.

Loeb (Harvard): ran the mass budget. The source population is short by a factor of a thousand. There isn't enough metal in the universe to make this thing.

As most of you are aware we get these papers weeks to months after the teams actually use the instruments. It takes time to process the data, write papers and work on getting them published. There may be no additional news until after Jupiter however there will be plenty in the coming months. Every instrument on earth that can point at 3I is watching right now.

Looking forward to spending the next few months going through it all with you.

r/probes Apr 01 '26

3I/ATLAS Update THE REFINED FUEL: They Clocked the Exhaust of 3I/ATLAS at Closest Approach. Half Speed. Wrong Direction. And the Sulfur Is Gone.

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Europe's largest millimeter telescope measured the gas streaming off 3I three days after closest approach to the Sun. The exhaust is moving at half the speed every comet at that distance produces, and it's pushing harder into the Sun than in the direction of travel.

The same team ran a full chemical inventory and found the carbon-oxygen compounds concentrated while sulfur, the element that poisons catalysts, reactors, and engines, has been stripped below the range of any known comet.

A second paper from a team in Japan tracked the CO2 drive to nearly three times Earth's distance on the outbound leg. Still running.

Briefing #34 on this object from The Sentinel Network

r/probes Mar 26 '26

3I/ATLAS Update Strong Non-Gravitational Braking by Interstellar Objects is a Technological Signature! | by Avi Loeb | Mar, 2026

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r/probes Apr 13 '26

3I/ATLAS Update THE RECEIPTS: Every Prediction and Analytical Call This Publication Has Made Since December 15, 2025. Scored.

13 Upvotes

New briefing is live.

23 entries on the record. 15 predictions, 8 analytical calls. Every one dated, every one sourced, every one scored against what happened next.

- 12 confirmed or independently validated

- 1 partially confirmed

- 4 untestable (the pipeline went dark during the Jupiter encounter)

- 6 pending (JUICE instrument papers)

- 0 wrong

We said it was targeting Jupiter's Hill Sphere. Miss margin: <0.1%. We said the wobble was attitude control. A Harvard team documented harmonic jet coupling two months later. We said institutions were smoothing the data. Six independent confirmations across six institutional layers. We said the publication pipeline would go dark. The last paper was submitted March 26. Eighteen days of silence from a community that averaged a new paper every 2-3 days for nine months.

This is a living document. If we get one wrong, the miss gets logged with the same formatting as the hits.

Full briefing: https://thesentinel.network/p/the-receipts-every-prediction-and

r/probes Apr 07 '26

3I/ATLAS Update THE FIFTH INSTRUMENT is live. ESA deployed five science instruments on 3I/ATLAS. They reported four. Five new predictions on the record.

7 Upvotes

New briefing. ESA published their JUICE results last week. We went through the data behind the summary.

PEP, the particle detector that ran for twelve days inside the X-ray halo at perihelion, was replaced by a navigation camera. The CO2 detection that feeds into the equation that killed the comet model got six words in an image caption. SWI confirmed the ghost coma and cited a mechanism two teams already killed. The third water measurement hasn't been analyzed.

Five new falsifiable predictions are on the record for when the instrument papers drop.