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It would be more accurate to determine the parallaxes of stars, and thus their distances from the Solar systerm, from the surface of Mars than from the surface of the Earth. The orbit of the planet Earth has a semi-major axis of 1 Astronomical Unit (AU). Imagine that a star is observed at the moment when there is astraight line from the center of the Sun ...


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I think Mars would be even better then the Atacama Desert for radio astronomy, even at low Martian altitude. We probably won't see MLMA (Mars Large Millimeter Array) in our lifetimes, but if would have extraordinary observing potential! Atmospheric interference: Water vapor is the worst for millimeter radio astronomy, but carbon dioxide and oxygen also ...


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