Astronauts train to scale a Mars volcano at an analogue site in France. Lava tubes that crisscross the Martian surface might provide sanctuaries for the first human explorers on the Red Planet. (Photo ...
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Live long and loiter: Why NASA's ESCAPADE probes will wait a year in space before heading to Mars
NASA's ESCAPADE Mars probes embarked on a 'loiter' trajectory after launch, and scientists say that extra time in space could have some consequences for the twin spacecraft.
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