STS-135

Target entity: STS-135
Context triple: [NASA Space Shuttle program, lastMission, STS-135]

• A. Space Shuttle Discovery
  Space Shuttle Discovery is a retired NASA orbiter best known for launching the Hubble Space Telescope and conducting numerous key missions in the Space Shuttle program.
• B. STS-42
  STS-42 was a 1992 NASA Space Shuttle Discovery mission focused on microgravity and life sciences research, notable for carrying Roberta Bondar as Canada’s first female astronaut in space.
• C. STS-1
  STS-1 was the inaugural crewed mission of NASA’s Space Shuttle program, marking the first orbital test flight of the reusable orbiter Columbia in 1981.
• D. Spacelab missions
  Spacelab missions were a series of reusable laboratory flights carried in the Space Shuttle’s payload bay that enabled astronauts to conduct extensive microgravity and scientific research in Earth orbit.
• E. Space Shuttle Columbia Memorial
  The Space Shuttle Columbia Memorial is a monument honoring the astronauts who lost their lives in the 2003 Columbia disaster, located among other national memorials to fallen heroes.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: STS-135
Target entity description: STS-135 was the final mission of NASA’s Space Shuttle program, flown by Atlantis in 2011 to resupply the International Space Station and conclude the shuttle era.

• A. Space Shuttle Discovery
  Space Shuttle Discovery is a retired NASA orbiter best known for launching the Hubble Space Telescope and conducting numerous key missions in the Space Shuttle program.
• B. STS-42
  STS-42 was a 1992 NASA Space Shuttle Discovery mission focused on microgravity and life sciences research, notable for carrying Roberta Bondar as Canada’s first female astronaut in space.
• C. STS-1
  STS-1 was the inaugural crewed mission of NASA’s Space Shuttle program, marking the first orbital test flight of the reusable orbiter Columbia in 1981.
• D. Spacelab missions
  Spacelab missions were a series of reusable laboratory flights carried in the Space Shuttle’s payload bay that enabled astronauts to conduct extensive microgravity and scientific research in Earth orbit.
• E. Space Shuttle Columbia Memorial
  The Space Shuttle Columbia Memorial is a monument honoring the astronauts who lost their lives in the 2003 Columbia disaster, located among other national memorials to fallen heroes.
• F. None of above. chosen