Space
One of Europa’s plumes may not exist, making hunt for life hard
Jupiter’s icy moon is a promising place to find alien microbes, but hopes that they could be blasted into space by watery plumes may have diminished
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Space
I watched the eclipse with scientists hunting the sun’s secrets
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Space
It could be snowing on Mars right now
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Space
Great American Eclipse: Everything you need to know to get ready
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Physics
Solar eclipse will reveal the roiling fog of plasma we call home
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Space
Ice at Mars’s equator hints the planet was once much more tilted
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Space
Tethered satellites could see the moon’s weird swirls up close
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Space
Moon’s magnetic field lasted twice as long as we thought it did
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Space
Nuclear reactors on rockets may fuel future crewed trips to Mars
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Space
Giant loner asteroids suggest baby planets formed quickly
The oldest intact asteroids hint that planets didn’t grow by slowly gathering small space rocks, but came from rapidly collapsing dust
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Space
Finding the first pulsar set my world spinning
Features
Space
First exomoon might have been spotted 4000 light years away
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Earth
Earth’s underwater dunes help explain Venus’s weird surface
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Space
Asteroids may have been giant mudballs in the early solar system
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