shoemaker-levy 9

How A New Family Tree of Space Rocks Could Better Protect Earth

In perhaps the neatest astronomical application of geneology yet, astronomers found 28 "hidden" families of asteroids that could eventually show…

11 years ago

Historic Comet Smashup Brought Water to Jupiter’s Stratosphere

A large comet that peppered Jupiter two decades ago brought water into the giant planet's atmosphere, according to new research…

12 years ago