Q. In which year was the Kepler space telescope launched by NASA?
Answer: 2009
Notes: The Kepler space telescope was launched by NASA on March 7, 2009 with an objective to discover Earth-size planets orbiting other stars. It has been recently reported that NASA’s Kepler/K2 mission has identified 747 unique planet candidates and 57 multi-planet systems using photometric data, of which 366 have not been previously identified.