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Comparing the thickness of Mars’ atmosphere and its water loss at perihelion to aphelion, in these Hubble Space Telescope images of the Red Planet. (Image credit: NASA/ESA/STScI/John T. Clarke (Boston University).)
Comparing the thickness of Mars’ atmosphere and its water loss at perihelion to aphelion, in these Hubble Space Telescope images of the Red Planet. (Image credit: NASA/ESA/STScI/John T. Clarke (Boston University).)