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Space
The universe may be full of ex-moons flung from their home worlds
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Space
Exclusive: NASA has begun plans for a 2069 interstellar mission
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Space
Jupiter鈥檚 icy moon Europa has a hidden 鈥榗onveyer belt鈥� of heat
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Technology
Secure your secret messages with printable invisible ink
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Space
We may have found 20 habitable worlds hiding in plain sight
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Space
Boiling water on Mars could make the planet’s sand levitate
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Environment
Volcanoes that spew stretchy ice could make dwarf planets bright
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Hot ice could have seeded life on Earth
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Space
NASA eyes Neptune and Uranus for missions in the 2030s
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