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This Explorable Scene transports students to the cold, rocky surface of planet Mars. Around half the size of Earth, and our next neighbour away from the Sun in the Solar System, Mars does have many similarities to Earth but also striking differences. Like other rocky inner planets it has central core, a rocky mantle and a solid crust, but the dusty Martian surface is famously a rusty red colour. There is evidence for volcanic activity and flowing liquid water in the distant past, and while over time this activity has ended, the search for evidence of past or current microscopic life on Mars continues.