The 700–1,300 feet-wide space rock deformed rocks more than six miles from the impact site when it hit 600 million years ago.
As you're driving around L.A. this week and next, plan to pull over and pull out your camera: The mountains all around us are ...
Where California's towering Sierra Nevada surrenders to the sprawling San Joaquin Valley, a high-stakes detective story is ...
Current members of AAAS who are also Fellows can be found by using the search boxes below. A member whose efforts on behalf of the advancement of science or its applications are scientifically or ...