After recent events, we're all ready to hop aboard the next flight to Mars. But before us Earthlings embark on a seven-month journey to the Red Planet, we need to understand how the harsh conditions of space can affect our bodies.
Commander Scott Kelly has just returned from his 340-day mission aboard the ISS. The record breaking mission has seen Kelly and Russian cosmonaut Mikhail Kornienko spend almost a year in space, and scientists hope to gain an insight into what long stays in microgravity do to the body, with views on missions to Mars in the future.
