Fire totals currently on track to make 2015 the worst fire season in Alaskan history.
This new image of an area on Pluto's largest moon Charon has a captivating feature—a depression with a peak in…
This image of the sun was taken on July 15, 2015, with the Extreme Ultraviolet Imager onboard NASA's Solar TErrestrial…
After 3 months in safe mode, due to its location behind the sun, NASA's STEREO-A spacecraft is back in operation.
At one point, as a solar prominence erupted into space, it seemed to create the Greek letter Pi as seen…
This animation combines various observations of Pluto over the course of several decades.
New close-up images of a region near Pluto’s equator reveal a giant surprise: a range of youthful mountains.
Remarkable new details of Pluto’s largest moon Charon are revealed in this image from New Horizons’ Long Range Reconnaissance Imager…
The latest spectra from New Horizons Ralph instrument reveal an abundance of methane ice, but with striking differences from place…
Since its discovery in 2005, Pluto's moon Hydra has been known only as a fuzzy dot of uncertain shape, size,…
