The twin GRAIL spacecraft met their end yesterday after a successful mission mapping the topography of lunar gravity. NASA has named the location of the probes' controlled collision with the Moon the Sally K. Ride Impact Site.
Dr. Ride joined the astronaut program in 1978 and, five years later, became the first American woman in space. She flew again a year later before retiring from active service and joining NASA management. She went on to serve on the committees which investigated both the Challenger and Columbia space shuttle accidents and helped NASA to begin its strategic planning. The GRAIL mission was her final involvement with the space program, so it is fitting that NASA marks the year of her passing with the passing of this mission.