US Astronaut Scott Kelly to retire
Q. Which astronaut went on the longest US space mission on record?- Published on 14 Mar 16a. Mark Kelly
b. Scott Kelly
c. Mikhail Komienko
d. None of the above
ANSWER: Scott Kelly
The astronaut who holds the American record for the most time spent in space will retire on April 1, according to the US space agency. Kelly along with Russian cosmonaut Mikhail Komienko has returned to earth after a year on ISS. This is the longest US space mission on record intended to pave the way for human travel to Mars. Kelly’s 240 day mission broke the previous record of 215 days held by former astronaut Michael Lopez-Alegria aboard the space station in 2007.