NASACast Video

Arctic sea ice declined this summer to its second smallest extent in the satellite era, suggesting that the record set in 2007 may not have been an anomaly. If recent trends in the melt rate continue, we could see a virtually ice-free Arctic each summer much sooner than previously thought.

Episode 2 features: Dr. James Hansen talks about global warming and what we can do about it; green homes at the Solar Decathlon; zero to 60 in three seconds in the all-electric Wrightspeed X1.

Since its launch in April 2006, the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation mission, CALIPSO, has provided new insight into the role that clouds play in regulating our climate.

Tracy Drain is a Systems Engineer for the Mars Reconnaissance Orbiter.

Endeavour was moved to Launch pad 39B in a major milestone for STS-125 and STS-126.

One of the Lunar Reconnaissance Orbiter's primary objectives is to scout safe landing sites for future manned and robotic missions to the moon. To do so, LRO's suite of instruments work collectively to build a detailed picture of the surface. Let's take a look at how this is done.

The concept of a Star Tracker probably can be traced back to the early sailors who used to navigate the open seas. The concept is they use star field patterns in order to tell them where they’re pointed, while they are sailing from east to west or north to south, whatever direction they were going.

NASA EDGE celebrates NASA’s 50th Anniversary at the Smithsonian Folklife Festival in Washington, DC with interviews, an ESA and a unique lunar rover race.

Terry Virts is a NASA astronaut.

Launched in January 2006, New Horizons will travel through space for 9-1/2 years before meeting up with Pluto in the summer of 2015.

Your NASA sixty-second space shuttle update.

STIS was our first black hole hunter. It confirmed for the first time the existence of a super massive black hole in the center of a galaxy. And it went on to make the first detection and chemical analysis of the atmosphere of a planet around another star. We want to want to keep on doing that kind of work.

Welcome to NASA 360! In this show, hosts Jennifer Pulley and Johnny Alonso explore NASA's connections to cordless power tools and liquidmetal and introduce us to a next-generation astronaut space suit.

Step away from the city lights and gaze up at our Milky Way galaxy. You may even see one of the galaxy's spiral arms with your own eyes!