Astronaut claims he grew taller by 9 cm in 3 weeks in space
Japanese astronaut Norishige Kanai has claimed he grew 9 cm in height over the past three weeks aboard the International Space Station (ISS). A 3-5 cm growth in height has previously been recorded during ISS missions due to elongation of spine in microgravity. The 41-year-old said he was worried he may not fit into the spacecraft to return to Earth.