LIGO
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The gravitational waves we’ve detected so far have been like tsunamis in the spacetime sea. Now, a 13-year survey of light from pulsars scattered across the galaxy may have revealed the first hints of gentle gravitational wave background signals.
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The LIGO and Virgo Scientific Collaboration has detected gravitational waves coming from the most massive black hole collision that it's ever recorded. The end result created a gargantuan black hole that belongs to a new class.
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Classical physics describes how large objects and systems work on an everyday scale, while quantum physics describes the “spooky” subatomic world. Now scientists have observed a rare crossover where a quantum fluctuation affected a macroscale object.
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Astronomers have observed a bright flash of light from space, which appears to have come from a collision between two black holes. And that’s surprising, considering that black holes are famously dark objects.
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For the first time, scientists have managed to pick up higher harmonics in gravitational waves. After a round of upgrades The LIGO and Virgo gravitational wave detectors have extended their range, revealing new details about the events behind them.
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The LIGO collaboration has announced the detection of gravitational waves from a pair of neutron stars colliding. This marks just the second time ever that this kind of event has been spotted, as the smash-up sent ripples through spacetime itself.
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The Kamioka Gravitational-wave Detector (KAGRA) in Japan will join LIGO in the US and Virgo in Italy to triangulate where any waves are coming from.
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A bright explosion in the sky in 2016 has now been identified as a kilonova, where two neutron stars collide and create gold.
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Astronomers have detected a gravitational wave signal that appears to be caused by a black hole swallowing a neutron star. Aside from being an incredible cosmic cataclysm to witness, this detection is important for another reason: it may be the final point in the gravitational wave trifecta.
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The LIGO detector uses 4-km-long (2.5-mi) arms. But now, a Northwestern University team is aiming to build a gravitational wave detector small enough to fit on a tabletop, which could detect signals the larger facilities miss.
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We’re now getting new gravitational wave detections so often it almost doesn’t seem special anymore. Barely a month into a new observation run, the LIGO/Virgo collaboration has now reported five new events, including what may be the first ever detection of a black hole swallowing a neutron star.
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In 2015, a century-old prediction by Einstein was finally proven correct, as gravitational waves were detected for the first time. Now, the facilities behind this discovery, LIGO, are back up and running after a year-long upgrade, with a few new tricks up their sleeves.
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