With innovative approaches to life-threatening diseases and natural disasters, UC San Diego researchers are making critical ...

The waxing moon will be 40%-lit as the Lyrid meteor shower comes to a peak on the night of April 21-22, when up to 18 ...

The Apophis asteroid, once feared to hit Earth, is less than three years from making an unprecedented approach toward Earth.

With a mean diameter of 340 meters (1,115 feet), the asteroid has a long axis of at least 450 meters (1,480 feet). An ...

For a brief stretch on April 13, 2029, a giant space rock will slip closer to Earth than some of the satellites parked high ...