In the coming years, an unprecedented number of people will leave planet Earth—but it’s becoming increasingly clear that deep space will make us sick.
YR4 now has a 2.3% chance of impacting Earth in 2032, prompting ongoing observations. Ground-based telescopes will track it ...
NASA’s OSIRIS-REx mission uncovered a cosmic connection between asteroid Bennu and Earth’s Searles Lake. Both contain minerals formed by evaporating salty water, hinting that Bennu’s parent body once ...
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