Rocky bodies called protoplanets were thought to have formed slightly earlier in the inner solar system than those beyond the ...

NASA has discovered a new interstellar comet that's currently located about 420 million miles away from Earth. The space ...

A small, inconspicuous meteorite may be about to change our understanding of how and when our solar system formed. Tiny shavings from the meteorite Northwest Africa 12264 are challenging the long-held ...