Space was one of Sally Ride’s great loves. The National Geographic documentary, directed by Cristina Costantini, Introduces ...

There is only one way to experience lunar gravity while still on Earth, or rather a few thousand feet above its surface: on a ...

May 5: Alan Shepard commands Freedom 7 on the first Mercury mission, becoming the first American in space. His ballistic trajectory during the 15-minute flight takes him to a maximum height of 116 ...