Cassini Spots Daytime Lightning on Saturn
Saturn was playing the lightning storm blues. NASA's Cassini spacecraft has captured images of last...
Why Is Earth So Dry?
With large swaths of oceans, rivers that snake for hundreds of miles, and behemoth glaciers near the north and...
Study Finds Heat is Source of ‘Pioneer Anomaly’
An artist's impression of Pioneer 10 heading out of the solar system towards...
A magnetic monster’s dual personality
Is it a magnetar or is it a pulsar? A second member of a rare breed of dead, spinning star has been identified thanks to an armada of space-...
NASA's Car-Sized Rover Nears Daring Landing on Mars
NASA's most advanced planetary rover is on a precise course for an early August landing beside a Martian mountain to...
Hubble Sees the Needle Galaxy, Edge-on and Up Close
This image snapped by the NASA/ESA Hubble Space Telescope reveals an exquisitely detailed view of...
NASA/NOAA Satellite Sees Western U.S. High Mountain Blazes
This interactive shows two Suomi NPP images of the Little Bear Fire.
Big Sunspot 1520 Releases X1.4 Class Flare With Earth-Directed CME
This image from the Solar Dynamics Observatory shows the sun at 12:45 PM EDT on...
