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
Mars to Stay the astronauts from the surface of Mars is one of the most difficult parts of a Mars mission, the idea of a one-way trip to Mars has been proposed several times. Space activist Bruce Mackenzie, for example, proposed a one-way trip to Mars in a presentation "One Way to Mars – a Permanent Settlement on the First Mission" at the 1998 International Space Development Conference, arguing that since the mission could be done with less difficulty and expense if the astronauts were not required to return to Earth, the first mission to Mars should be a settlement, not a visit.