Life on Mars If the surface life has been reanimated as recently as 450,000 years ago, then rovers on Mars could find dormant but still viable life at a depth of one meter below the surface, according to an estimate. In 1965, the Mariner 4 probe discovered that Mars had no global magnetic field that would protect the planet from potentially life-threatening cosmic radiation and solar radiation; observations made in the late 1990s by the Mars Global Surveyor confirmed this discovery. Scientists speculate that the lack of magnetic shielding helped the solar wind blow away much of Mars's atmosphere over the course of
Mars (Doctor Who) space programme sent a series of manned missions to Mars. Mars Probes 6 and 7 made contact with a group of radioactive aliens orbiting the planet on a peaceful survey mission. On 31 October 2006, the Guinevere One probe was launched for an intended landing on Christmas Day, but was intercepted by the alien Sycorax before it could do so. The first human colonists arrived on Mars in 2058 and established Bowie Base One, a massive bio-dome where frozen Martian water deposits were used to grow vegetation. On 21 November 2059, the colony was destroyed when mission commander Captain Adelaide