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…

9 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…

9 years ago