UPSC Prelims 2007 Q129: Science & Technology – Space Technology & Astronomy
Which one of the following pairs is not correctly matched?
- (a) Cosmic Background : Satellite Programme Explorer (COBE)
- (b) Falcon : Under - sea cable system
- (c) Discovery : Space shuttle
- (d) Atlantis : Space station
Answer: (d) Atlantis : Space station
Explanation
Space and tech names — which pair is wrong?
| Pair | Fact | Matched? |
|---|---|---|
| Cosmic Background Explorer (COBE) — satellite programme | NASA satellite (1989) that mapped the cosmic microwave background | ✔ |
| Falcon — undersea cable system | FALCON is FLAG Telecom's (Reliance Globalcom) submarine cable linking India and the Gulf | ✔ |
| Discovery — space shuttle | NASA shuttle Discovery (first flight 1984) | ✔ |
| Atlantis — space station | Atlantis is a space shuttle, not a space station | ✘ |
NASA's shuttle fleet: Columbia, Challenger, Discovery, Atlantis, Endeavour.
Space stations: Mir, ISS, Skylab, Tiangong.
Answer: (d) Atlantis : Space station.
Why each option is right or wrong
- (a) Incorrect. COBE is correctly a satellite programme.
- (b) Incorrect. FALCON is correctly an undersea cable system.
- (c) Incorrect. Discovery is correctly a space shuttle.
- (d) CORRECT. Atlantis was a space shuttle, not a space station — this pair is wrong.
Key point
Atlantis = space shuttle (flew the last shuttle mission, 2011). Space stations = Mir, ISS, Skylab, Tiangong.
Remember
Atlantis was a space shuttle, not a space station.
Common mistakes
- Doubting the Falcon cable because SpaceX's Falcon rocket is better known today.
- Thinking Atlantis docked with Mir, so it must be a station — it was a shuttle that docked with Mir.
- Not knowing all five NASA orbiters.
Exam tip
Shuttles: 'Columbia Challenged Discovery At Endeavour.'
Sources
- NASA — Space Shuttle fleet history
- NASA — COBE mission
- FLAG Telecom — FALCON cable system