Physics
It was always crazy to shoot for Mars before colonising the moon
Common sense is prevailing in human space exploration, and the moon is back as the place we need to colonise before a riskier trip to Mars, says Paul Marks
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Space
Nanoflares in the sun鈥檚 plasma may cause its scalding atmosphere
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Environment
Lunar volcanoes and lava lakes gave the early moon an atmosphere
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Space
The mysterious bright spots on Ceres may have a common origin
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Physics
Methane burps on young Mars helped it keep its liquid water
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Earth
Super-Earths draw asteroids to other worlds, which may seed life
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Earth
What a surprise 鈥� the end of the world has been delayed, again
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Earth
Huge space rocks could have helped start Earth鈥檚 plate tectonics
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Space
OSIRIS-REx spacecraft zooms by Earth on its way to an asteroid
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Space
Cassini ends its 20-year mission by slamming into Saturn
To avoid contaminating Saturn's two icy moons 鈥� now key targets in the hunt for life 鈥� Cassini was sent plummeting into the planet as its fuel ran out
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Space
Watching Cassini鈥檚 last moments from inside NASA mission control
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Space
Cassini takes last look at the ring patterns made by mini moons
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Space
Final pictures from Cassini as probe smashes into Saturn
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Space
Tears for Cassini: why it’s OK to well up over a lump of metal
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