A Kilometer-Wide Asteroid Will Blast Past Earth This Weekend At An Extraordinary Speed

Worlds With Underground Oceans – Like Europa, Titan, and Enceladus – May Be More Conducive to Supporting Life Than Earth

Climate Regions of Earth Redefined by the Distribution of Vertebrate Animals

Mission to clean up space debris around Earth is poised for launch - Low-Earth orbit, a narrow band of space around Earth, is crowded with thousands of tons of space junk.