Tiny nanocardboard probes that weigh less than a fruit fly could levitate through the Martian skies to gather data.
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Saturn is far from the sun, so why is its upper atmosphere so hot? Astronomers may have finally solved "one of the great mysteries of planetary science."
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"We don't only look at other planets to know what's out there. It's also a way for us to learn things about the planet that's under our own feet."
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The Habitable-zone Planet Finder has confirmed the existence of an exoplanet that is likely close in size to Neptune, only 100 light years from Earth.
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The proto-Earth formed surprisingly quickly, new research shows. The finding ups the chance of finding water and life on other planets.
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