Sharon Christa McAuliffe (September 2, 1948 - January 28, 1986) was an American teacher and astronaut from New Hampshire who died in the explosion of the Space Shuttle Challenger on STS-51-L. She was born Sharon Christa Corrigan in Boston, Massachusetts.

McAuliffe was selected to be the first teacher in space on July 19, 1985. She joined the STS-51-L crew as a mission specialist with plans to teach lessons from space.

Selected from among more than 11,000 applicants from the education profession for entrance into the astronaut ranks, McAuliffe had been born the oldest child of Edward and Grace Corrigan. Her father was at that time completing his sophomore year at Boston College, but not long thereafter he took a job as an assistant comptroller in a Boston department store and the family moved to the Boston suburb of Framingham. As a youth she registered excitement over the Apollo moon landing program, and wrote years later on her astronaut application form that "I watched the Space Age being born and I would like to participate."

McAuliffe attended Framingham State College in her hometown, graduating in 1970. A few weeks later she married her longstanding boyfriend, Steven McAuliffe, and they moved to the Washington, DC, metropolitan area so Steven could attend the Georgetown University Law Center. She took a job teaching in the secondary schools, specializing in American history and social studies. They stayed in the Washington area for the next eight years, she teaching and completing an M.A. from Bowie State University, in Maryland. They moved to Concord, New Hampshire, in 1978 when Steven accepted a job as an assistant to the state attorney general. Christa took a teaching post at Concord High School in 1982, and in 1984 learned about NASA's efforts to locate an educator to fly on the Shuttle. The intent was to find a gifted teacher who could communicate with students from space.

NASA selected McAuliffe for this position in the summer of 1984 and in the fall she took a year-long leave of absence from teaching, during which time NASA would pay her salary, and trained for an early 1986 Shuttle mission. She had an immediate rapport with the media, and the teacher in space program received tremendous popular attention as a result. It is in part because of the excitement over McAuliffe's presence on the Challenger that the accident had such a significant impact on the nation.

Asteroid 3352 McAuliffe is named in her memory.

da:Sharon Christa McAuliffe de:Christa McAuliffe