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
Colonization of Mars protect astronauts and spacecraft from radiation. In September 2017, NASA reported radiation levels on the surface of the planet Mars were temporarily doubled, and were associated with an aurora 25-times brighter than any observed earlier, due to a massive, and unexpected, solar storm in the middle of the month. Mars requires less energy per unit mass (delta V) to reach from Earth than any planet except Venus. Using a Hohmann transfer orbit, a trip to Mars requires approximately nine months in space. Modified transfer trajectories that cut the travel time down to four to seven months in space are possible