NASA's Lunar Atmosphere and Dust Environment Explorer probe, seen in this artist's rendering, is orbiting the moon to gather detailed information about the lunar surface. Dana Berry/NASA hide caption

itoggle caption Dana Berry/NASA

A photo composed of nearly 900 images taken by the rover Curiosity shows a section of Gale Crater near the equator of Mars. The rovers are continuing to work through the U.S. government shutdown. NASA/AP hide caption

itoggle caption NASA/AP

NASA Administrator Charles Bolden speaks before Friday night's launch of the LADEE moon orbiter. The craft has run into a small technical issue, NASA says, which it will fix before it arrives at the moon next month. Carla Cioffi/NASA hide caption

itoggle caption Carla Cioffi/NASA

A computer image generated by NASA shows objects orbiting Earth, including those in geosynchronous orbit at a high altitude. The objects are not to scale. NASA hide caption

itoggle caption NASA