The International Space Station. Credit: NASA

Wednesday, April 20, 2016

NASA's Fermi Telescope Poised to Pin Down Gravitational Wave Sources

NASA's Fermi Telescope Poised to Pin Down Gravitational Wave Sources

Liftoff at NASA's 16th Annual Student Launch Challenge

Liftoff at NASA's 16th Annual Student Launch Challenge: One of dozens of high-powered rockets lifts off on April 16, 2016, during NASA's 16th annual Student Launch challenge, held near Marshall Space Flight Center in Huntsville, Alabama from April 13-16. Nearly 50 middle and high school, college and university teams from 22 states competed in the challenge.

Tuesday, April 19, 2016

Y Marks the Spot

Y Marks the Spot: A sinuous feature snakes northward from Enceladus' south pole like a giant tentacle.

Sunday, April 17, 2016

Early Ice Breakup of Beaufort Sea Due to Early Warm Temperatures

Early Ice Breakup of Beaufort Sea Due to Early Warm Temperatures: This image of early ice breakup of the Beaufort Sea, north of Alaska, was taken by the Suomi NPP satellite's Visible Infrared Imaging Radiometer Suite (VIIRS) instrument infrared channel, at around 1148 UTC on April 13, 2016.

Tuesday, April 12, 2016

The Great Divide

The Great Divide: It's difficult to get a sense of scale when viewing Saturn's rings, but the Cassini Division (seen here between the bright B ring and dimmer A ring) is almost as wide as the planet Mercury.

Saturday, April 9, 2016

Busy Traffic at the International Space Station

Busy Traffic at the International Space Station: Expedition 47 Flight Engineer Tim Peake of ESA took this photograph on April 6, 2016, as the International Space Station flew over Madagascar, showing three of the five spacecraft docked to the station. The station crew awaits the scheduled launch today, April 8, of the third resupply vehicle in three weeks: a SpaceX Dragon cargo spacecraft.

Thursday, April 7, 2016

Computer-Simulated Image of a Supermassive Black Hole

Computer-Simulated Image of a Supermassive Black Hole: Astronomers have uncovered a near-record breaking supermassive black hole in an unlikely place: in the center of a galaxy in a sparsely populated area of the universe. The observations, made by NASA’s Hubble Space Telescope and the Gemini Telescope in Hawaii, may indicate that these monster objects may be more common than once thought.