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Inner solar system tour explains Mercury, Venus, and Mars
Mercury, Venus, and Mars sit within the same general neighborhood as Earth, yet each has followed a radically different path.
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NASA spacecraft finds solar 'cannonballs' may have stripped Mars of its water — proving decades-old theory
After nearly a decade in orbit, NASA's MAVEN spacecraft has, for the first time, directly observed the process that scientists had long suspected was responsible for stripping Mars of its atmosphere.
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