PASADENA, Calif. — The initial work of NASA's Mars rover Opportunity at its new location on Mars shows surface compositional differences from anything the robot has studied in its first 7.5 years of exploration.
WASHINGTON — Two studies appearing in the Aug. 25 issue of the journal Nature provide new insights into a cosmic accident that has been streaming X-rays toward Earth since late March. NASA's Swift satellite first alerted astronomers to intense and unusual high-energy flares from the new source in the constellation Draco.
FAIRBANKS-As late August brings night back to the far north, our old friend darkness is restoring our view of the aurora, stars and satellites, seen as pinpoints of light streaking through the heavens. In the last 50 years, researchers have blasted thousands of these devices into Earth’s orbit.