Although they don't impact the surface directly, historical evidence and simulations suggest airbursts can pack a punch.

Just 41 light-years distant in the constellation of Cancer, Janssen (also called 55 Cancri e) is presently the best evidence to date for an atmosphere around a terrestrial, rocky planet outside ...

NASA estimates that there are nearly 6,000 tons of space junk in low Earth orbit, moving around our planet at speeds up to 18,000 mph. Most space debris is from human-made objects like pieces of ...