NASA's

It was December 14, 1972, the final day on the moon for the last Apollo mission. The Challenger lander was dusted in a fine coating of gray lunar dirt, called regolith, both inside and out. Geologist Jack Schmitt was packing the sample containers, securing 243 pounds of rocks to bring home. After passing Schmitt the

NASA’s new water surveying SWOT spacecraft can be seen unfurling its main antenna in a stunning new video shot in space...