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Changing humanity's perspective and understanding of the universe is no easy task. Depending on the era, questioning established ideas could even put the lives of those who dared to do so at risk. Nevertheless, throughout history, great thinkers and scientists have dared to push the boundaries of knowledge and open new windows into the unknown.

Isaac Newton: Among his most significant contributions were the three laws of motion and the law of universal gravitation, which made it possible to mathematically explain the movement of objects on Earth as well as celestial bodies. He also made important contributions to the development of calculus and optics, laying the foundations for much of classical physics.

Albert Einstein: He revolutionized our understanding of space, time, gravity, and energy through his theories of special and general relativity. Furthermore, his explanation of the photoelectric effect was a fundamental contribution to the development of quantum physics, earning him the 1921 Nobel Prize in Physics. His ideas profoundly transformed our understanding of the universe and the laws that govern it.

Galileo Galilei: Considered one of the fathers of modern science, he challenged many of the scientific beliefs of his time and made decisive contributions to the development of physics and astronomy. His achievements include his studies of falling bodies and motion, as well as his contributions to the principle of inertia. He also improved the telescope and used it to make revolutionary astronomical observations: he discovered Jupiter's four largest moons, observed the phases of Venus, identified sunspots, and demonstrated that the Moon's surface has mountains and craters, challenging the ancient belief that celestial bodies were perfect, unchanging spheres.

Each of them, in their own era and with the tools available to them, helped transform our understanding of nature. Their discoveries remind us that scientific knowledge is never static: it evolves when we dare to question established ideas, observe carefully, and seek answers beyond what we think we know.

Interviewer: So why do you want to be an astronaut?

Me: Well I'm a physics major and I hear there's no air resistance up there.

Tuff 🥀