How did Earth, alone among the solar system's rocky planets, become the home for life? How, among all this frigid lifelessness, did our planet become warm, hospitable, and life-sustaining? The answer ...
A rare kind of meteorite known as enstatite chondrite resembles Earth's composition roughly 4.5 billion years ago. The key to their counterargument resides in a rare type of space rock called ...
The mystery of how life on Earth originated , and whether it exists elsewhere in the universe, are "the raison d’être of space exploration", said Louis Friedman, co-founder of the Planetary Society.
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