Which are the biggest spacecraft ever to fall from space?
Russia's 140-tonne Mir space station, which was the largest satellite when it was assembled, had a controlled descent towards the Pacific in 2001. In 1979, NASA's 85-tonne Skylab space station scattered pieces over several miles of Western Australia after an uncontrolled re-entry. NASA's 80-tonne Columbia spacecraft broke up during re-entry killing all astronauts including Kalpana Chawla in 2003.