Based on a computer simulation in 2010 of the flight data from Apollo 13, an analyst has determined that if the ill-fated mission had failed to return to Earth following the April 13 explosion of one of its oxygen tanks, the spacecraft would have returned to Earth orbit after drifting for five weeks, traveling 350000 miles away from the Earth before its path brought it close enough to the Moon's gravitational field to propel it back toward Earth.