Lego Space Altair, Centauri, Antares, Canopus, Pollux, Vega, Arcturus, Cassiopeia, Mizar, and Rigel. "Mars Mission" is the second space theme to feature both humans and aliens and is a reboot of "Life on Mars". Unlike "Life on Mars", the aliens (a different breed of Martians) and humans were pitted against each other as children had been fond of doing with the original line. Space Police III continued the Lego trend of humans (or at least human-looking) versus aliens started in the former Mars Mission theme. This is the first time the Space Police have been pitted against monstrous looking aliens instead of
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.