Aurora Australis over Concordia station 18 July

A stunning image showing Aurora Australis – the...
Heliophysics Nugget: Colorful Science Sheds Light on Solar Heating

Left: This image was captured by NASA's Solar Dynamics Observatory (SDO) on June 19,...
More Ice Breaks off of Petermann Glacier

The Petermann Glacier grinds and slides toward the sea along the northwestern coast of Greenland,...
NASA'S Spitzer Finds Evidence for an Exoplanet Smaller than Earth

Astronomers using NASA's Spitzer Space Telescope have detected what they believe is a planet two-thirds the size of...
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-...