Tag Archives: Black Holes

Four black hole smashups added to LIGO’s list

Four more mergers of black holes, including the biggest one recorded to date, have been added to a catalog generated by gravitational-wave detectors. The additions were announced today by the teams in charge of the Laser Interferometer Gravitational-Wave Observatory, or … Continue reading

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Relativity rules star near our galaxy’s black hole

A 26-year-long observational campaign provides clear evidence of the effect that general relativity has on the motion of a star known as S2 as it boomerangs around the supermassive black hole at the center of our Milky Way galaxy. Get … Continue reading

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Neutrino trackers solve a cosmic ray puzzle

An array of detectors buried under a half-mile-wide stretch of Antarctic ice has traced the path of a single neutrino back to a supermassive black hole in a faraway galaxy, shedding light on a century-old cosmic ray mystery in the … Continue reading

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Stephen Hawking gets a cosmic sendoff

Famed physicist Stephen Hawking’s ashes were interred among the greats of British science at Westminster Abbey today — and to mark his passing, his message of peace and hope was beamed to the nearest known black hole. Black holes were a favorite subject … Continue reading

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Our view of black holes may change … again

After decades’ worth of mystery, it feels as if physicists are finally closing in on the nature of black holes, thanks to Nobel-winning breakthroughs like the first detections of black hole mergers at the Laser Interferometer Gravitational-wave Observatory. But Columbia University … Continue reading

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NASA’s Rossi X-ray probe makes a quiet exit

A month after the breakup of China’s Tiangong-1 space lab, another spacecraft went to its fiery doom today with far less fanfare. Orbital assessments from the U.S. military’s Joint Space Operations Center indicate that NASA’s Rossi X-Ray Timing Explorer made its atmospheric re-entry at roughly … Continue reading

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Gravitational waves play role in black hole show

Black holes are the collapsed stars of the show on “Black Hole Apocalypse,” a two-hour “NOVA” presentation that’s premiering Jan. 10 on PBS. But the Laser Interferometer Gravitational-Wave Observatory, also known as LIGO, gets its share of the spotlight as well. “LIGO both … Continue reading

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