Space
Two black holes merged to form a huge one moving at incredible speeds
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gravitational waves
Physics
LIGO mirrors cooled to near absolute zero could probe quantum gravity
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Space
Impossibly huge black holes may have come from weird ancient stars
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Space
Astronomers may have found black holes that formed soon after big bang
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Space
We may have found hints of gravitational waves permeating the universe
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Space
China launched two satellites to find sources of gravitational waves
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Space
Gravitational wave detectors have found their biggest black hole yet
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Science with Sam: What is a black hole? And could you survive one?
Video
Space
We don't know how fast the universe is expanding, and that's a problem
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Space
The detector with a billion sensors that may finally snare dark matter
Features
Space
Gravitational wave mystery could be a sign of a new kind of black hole
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Space
¿ìè¶ÌÊÓƵ ranks the top 10 discoveries of the decade
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