National Geographic's "SALLY" reveals the true story of Sally Ride, from her space career to the untold private side of her life.

John Grunsfeld has a model of the Hubble Space Telescope on his bookshelf. It's right next to a model of a NASA space shuttle ...

Hubble was built with a number of instruments onboard, including the Wide Field Planetary Camera (WFPC), the Goddard High ...