NASA astronaut and scientist who flew two Space Shuttle missions on the Atlantis and two on the Endeavour.
She received a Ph.D. in physics from the University of Missouri. Later, she taught at the university's Department of Physics and Astronomy.
She received a NASA Outstanding Performance Rating, a Sustained Superior Performance Award, and an Outstanding Leadership Award.
She married fellow astronaut, Steven Nagel.
She and Sally Ride both worked as physicists and astronauts.