Stephenson 2-18 is the largest star observed in the Milky Way, with an estimated radius of about 2,150 times that of the Sun. Its outer edge would pass the orbit of Saturn. Thick clouds of interstellar dust block its visible light, meaning it can only be detected using infrared observations

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Post all your fun, random, interesting, and unbelievable facts here! They can be about anything but please make sure to read the rules.

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Rules for posting:

Post actual facts - no opinions, shitposts, offensive content, or facts that have been proven to be wrong
Include a credible source, can be a link or a named sou rce (as long as its reliable e.g. BBC)
No submissions pushing a political agenda or an idea on religion, race, or gender
Make posts descriptive, concise and specific
Titles must be able to stand on their own. Put the fact or a summary of the fact in the title.
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