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* Mars Facts: Life, Water and Robots on the Red Planet https://www.space.com/47-mars-the-red-planet-fourth-planet-from-the-sun.html * Mars research http://planetary-science.org/mars-research/ |
Reference
- Soinc solar system sample tests
- American Association of Variable Star Observers:
NASA Mars overview https://solarsystem.nasa.gov/planets/mars
Mars Facts: Life, Water and Robots on the Red Planet https://www.space.com/47-mars-the-red-planet-fourth-planet-from-the-sun.html
Mars research http://planetary-science.org/mars-research/