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…

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…

Y Marks the Spot

A sinuous feature snakes northward from Enceladus' south pole like a giant tentacle.

Y Marks the Spot

A sinuous feature snakes northward from Enceladus' south pole like a giant tentacle.

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…

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…

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…

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…

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…

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…