Life on Mars was a LEGO Space subtheme released in 2001 that consisted of 21 sets and depicted a peaceful coexistence between humans and aliens on the planet Mars. The human astronauts were peaceful Mars explorers with a small assortment of vehicles featuring little-to-no weaponry. The native Martians on Mars possessed a variety of vehicles, some heavily armed, though none were used aggressively against the human explorers.
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