A Massive Flow of Rock and Mud Tumbled Down Mount Rainier Centuries Ago. Scientists Pinpointed Its Date to Better Understand the Volcano's Complex Threats
An asteroid shattered near Jupiter’s gravitational gateway 800 million years ago; scientists say the debris may have bombarded Earth for 150 million years
'Shared cosmic experience': 'Potentially hazardous' asteroid Apophis could be visible to 90% of Earth's population during ultraclose 2029 flyby, new maps reveal