/u/SharkLaser2019's posts in /r/askscience
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Why does Titan, Triton and Io have atmospheres when our Moon has little to none even though our Moon is made up from the same material as Earth (Thea impact)? Did the Moon once have an atmosphere like early Earth (a primordial like atmosphere like Titan)?
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When a HIV vaccine "fails," does that mean the human test group contracted HIV by the failed vaccine?
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Why are humans consistently able to draw "better" over the past 3,000 years? Is it a sign of our increasing intelligence?
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I read somewhere that our solar system had many generations of planets and that Mars is from a previous generation while Earth is from the current generation. Is there any evidence for this?
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If a planet is tidally locked to it's star, does that automatically mean that any or all moons orbiting that planet would be locked to the star as well?
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Are we actually living longer + healthier due to biology or is it due to the technological advances in medicine?
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Can the habitable zones of planets with its relationship to it's orbiting moons ever be defined by the same way we define a habitable zone of a star and its orbiting planets?
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