Thu, Mar 03, 2016, 07:41 AM
Scott Kelly, American Astronaut and the Russian cosmonaut Mikhail Kornienko landed on Tuesday. They returned to their home planet after spending 340 days in space. Reports said that they spent the time about 249 miles above the planet aboard the International Space Station. The said mission will help NASA develop protocols and techniques the agency will use for a crewed mission to Mars.