Apollo's moon rocks changed science — but there's more to learn if we go back.
Relive Apollo 11 Live with ApolloinRealTime.org!
NASA relied on the U.S. State Department to implement an extensive global network of antennas to support the 1969 moon landing.
Apollo 11 carried the first geologic samples from the moon back to Earth — and NASA has finally released footage of researchers examining those lunar samples for signs of life.
The moon was at the tail end of a partial lunar eclipse when it rose above the Andean horizon on Tuesday (July 16).
Here's a guide to SpaceX's launch schedule, other rocket missions, astronomical events of the next year, as well as milestones for spacecraft already in travel.