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Mars offers quite a few things that make it more inviting for a manned base:

- 38% of Earth's gravity

- 24.5 hour days

- lots of resources such as iron, carbon, oxygen, water (ice)

- aerobraking in the atmosphere saves fuel

- it's big (same land mass as Earth's). There's enough room for growth.

- temperatures are better than elsewhere in space (-63°C to +20°C at the equator)

- Lava tubes that could offer protection against radiation and meteorites for habitats

- good potential of life / former life



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