Ride, Sally K. (Kristen) (1951-), a United States astrophysicist and astronaut. She was the first American woman to fly in space, being a crew member on the space shuttle Challenger flight of June, 1983.
It's launch time for the first privately funded space flight. In the course of battle for the X Prize, a group called Scaled Composites has built and tested SpaceShipOne, a sub-orbital spacecraft intended to carry tourists on the ride of their life. Learn all about the craft. See more »