question: Who as one of the seven crew members killed in the Space Shuttle "Challenger" disaster, who's death lead to the cancellation of the Teacher in Space Project ?
answer: Sharon Christa McAuliffe
context: Title: Educator Astronaut Project
  Passage: The Educator Astronaut Project is a NASA program designed to educate students and spur excitement in math,science, and space exploration.  It is a successor to the Teacher in Space Project of the 1980s that was cancelled after Christa McAuliffe died in the Space Shuttle "Challenger" disaster (STS-51-L).  NASA halted the teachers project amid concerns surrounding the risk of sending civilians to space.
  Title: STS-61-C
  Passage: STS-61-C was the twenty-fourth mission of NASA's Space Shuttle program, and the seventh mission of Space Shuttle "Columbia".  It was the first time that "Columbia", the first operational orbiter to be constructed, had flown since STS-9.  The mission launched from Florida's Kennedy Space Center on 12 January 1986, and landed six days later on 18 January.  STS-61-C's seven-person crew included the second African-American shuttle pilot, future NASA Administrator Charles Bolden, the first Costa Rican-born astronaut, Franklin Chang-Diaz, and the second sitting politician to fly in space, Representative Bill Nelson (D-FL).  It was the last shuttle mission before the Space Shuttle "Challenger" disaster, which occurred just ten days after STS-61-C's landing.
  Title: Christa McAuliffe
  Passage: Sharon Christa McAuliffe (September 2, 1948 – January 28, 1986) was an American teacher from Concord, New Hampshire, and was one of the seven crew members killed in the Space Shuttle "Challenger" disaster.
  Title: Space Shuttle Challenger
  Passage: Space Shuttle "Challenger" (Orbiter Vehicle Designation: OV-099) was the second orbiter of NASA's space shuttle program to be put into service following "Columbia".  The shuttle was built by Rockwell International's Space Transportation Systems Division in Downey, California.  Its maiden flight, STS-6, started on April 4, 1983.  It launched and landed nine times before breaking apart 73 seconds into its tenth mission, STS-51-L, on January 28, 1986, resulting in the death of all seven crew members, including a civilian school teacher.  It was the first of two shuttles to be destroyed in flight, the other being "Columbia" in 2003.  The accident led to a two-and-a-half year grounding of the shuttle fleet; flights resumed in 1988 with STS-26 flown by "Discovery".  "Challenger" itself was replaced by "Endeavour" which was built using structural spares ordered by NASA as part of the construction contracts for "Discovery" and "Atlantis".
citations: Christa McAuliffe Educator Astronaut Project