Former NASA astronaut to speak at Sweet Briar's Commencement
AMHERST Co., Va. (WSET) -- Sweet Briar's commencement is Saturday.
Former astronaut Kathryn Thornton will deliver the keynote address.
Thornton made four space flights between 1989 and 1995.
NASA selected her for the shuttle program in May 1984.
During her time with the agency, she logged more than 975 hours in space.