
NASA astronaut Scott Kelly shared this photograph on social media, taken from the International Space Station on Sept. 10, 2015.…

The night sides of Saturn and Tethys are dark places indeed.

This high-dynamic range (HDR) photo of the Stratospheric Observatory for Infrared Astronomy (SOFIA) was captured just before sunset at the…

Ground Support Engineer Greg Perryman services the FORCAST instrument onboard the Stratospheric Observatory for Infrared Astronomy (SOFIA) during the observatory’s…

Jim Green, director of Planetary Science at NASA Headquarters in Washington, attends the world premiere for “The Martian” on day…

NASA Astronaut Tracy Caldwell Dyson and her husband George attend the world premiere for “The Martian” on day two of…

Actress Nichelle Nichols and Airborne Astronomy Ambassadors pose in front of the observatory telescope during their pre-flight safety training on…

Approximately 65 employees from NASA’s Langley Research Center in Hampton, Virginia, lent helping hands in Hampton and Newport News in…

Large-scale crossbedding in the sandstone of this ridge on a lower slope of Mars’ Mount Sharp is typical of windblown…