What is 'Greased Lightning-10 (GL-10)', recently in the news?
Show answer
Answer: A. Greased Lightning GL-10 is a battery-powered, ten-engine plane that NASA tested in 2015. It can take off vertically like a helicopter and fly like an aircraft.
Watch for: The 'Lightning' name sounds like a fast rocket.
Why the other options are wrong
- B. Wrong because it was made by NASA, not Japan.
- C. Wrong because it is not a Chinese space observatory.
- D. Wrong because it is not an ISRO rocket.
Source to check: NASA Langley Research Center, GL-10 Greased Lightning feature, 2015 (nasa.gov)
Answer from the official UPSC key. Written and fact-checked by AI against the official key. Spotted a mistake? Report it.