Space
Cosmos, planets, stars, space exploration, and universe mysteries
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Space
Quasars shine brighter than trillions of suns
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Space
Black holes slowly evaporate over cosmic time
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Space
Hubble orbits Earth at 17,000 miles per hour
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Space
Galileo discovered Jupiter's moons with a homemade telescope
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Space
How stars shine: the secret of fusion
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Space
The International Space Station races around Earth
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Space
Hubble sees galaxies from the universe's infancy
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Space
GPS clocks need Einstein's relativity to work
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Space
Satellites orbit Earth at incredible speeds
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Space
A city-sized star weighs more than our sun
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Space
Neutron stars spin faster than a blender
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Space
A day on Venus is longer than its year
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Space
There are more stars than grains of sand on Earth
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Space
Saturn would float in a giant bathtub
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Space
Black holes are not actually holes
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