Scientists Think An Ancient Interloper Once Disrupted Our Entire Solar System
When you first learned about the Solar System, you probably saw diagrams that made it look orderly, with planets arranged in circular orbits around the Sun on a flat disk. But in reality, our Solar ...
Study finds that Earth's small asteroid visitor is likely a chunk of moon rock
A near-Earth object was likely ejected into space after an impact thousands of years ago. Now it could contribute new ...