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solar power

An asteroid named after Florence Nightingale whizzed past Earth on 1 September

Earth

Asteroid Florence buzzes Earth in closest fly-by since 1890

A 4.4-kilometre-wide space rock whizzed past Earth on its closest orbit in over a century. This asteroid won’t get this close again until after 2500

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Uranus

Space

Some of Uranus's small moons are doomed to collide

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Space

Steampunk rover design eliminates electronics to survive Venus

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artist's concept of plumes on Europa

Space

One of Europa’s plumes may not exist, making hunt for life hard

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Thorium could power the next generation of nuclear reactors

Technology

Thorium could power the next generation of nuclear reactors

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I watched the eclipse with scientists hunting the sun’s secrets

Space

I watched the eclipse with scientists hunting the sun’s secrets

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It could be snowing on Mars right now

Space

It could be snowing on Mars right now

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solar eclipse in 1979

Space

Great American Eclipse: Everything you need to know to get ready

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Solar eclipse

Space

Solar eclipse will reveal the roiling fog of plasma we call home

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Image of Mars from the Hubble Space Telescope

Space

Ice at Mars’s equator hints the planet was once much more tilted

Most of the water on Mars is at its poles, but ice near the equator may mean that the way the red planet is tilted has changed over the last few million years

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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

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