This asteroid is about the size of a large building, and it's hurtling along at tens of thousands of kilometres per hour. If ...

The love story between Pluto and Charon may have started with a kiss. A new study suggests the dwarf planet and its scarcely smaller moon likely came together in a collision that saw them conjoined ...

“Most planetary collision scenarios are classified as ‘hit and run’ or ‘graze ... for the formation of Earth’s moon doesn’t ...