WEST LAFAYETTE, Ind. — The organic ingredients to life, hints to where Earth’s water came from, and the fundamental building blocks of our planet and the solar system seem like a lot to fit in 4 ...
About 4.5 billion years ago, the most momentous event in the history of Earth occurred: a huge celestial body called Theia ...
Alpha Centauri, the nearest star system to the sun, is probably shedding comets and asteroids into our solar system — and even producing a few meteors in our sky. Located just 4.3 light-years from ...
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