Are black holes time machines? Yes, but there's a catch
Black holes form natural time machines that allow travel to both the past and the future. But don't expect to be heading back to visit the dinosaurs any time soon.
Black holes form natural time machines that allow travel to both the past and the future. But don't expect to be heading back to visit the dinosaurs any time soon.
Astronomy
Jan 4, 2023
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As different as they may seem, black holes and Las Vegas have one thing in common: What happens there stays there—much to the frustration of astrophysicists trying to understand how, when and why black holes form and grow.
Astronomy
Dec 15, 2022
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Research led by the University of Amsterdam has demonstrated that elusive radiation coming from black holes can be studied by mimicking it in the lab.
General Physics
Nov 11, 2022
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Scientists at the Event Horizon Telescope (EHT) have imaged the distant blazar J1924-2914 with unprecedented angular resolution, revealing previously unseen details of the source structure. Blazars are powerful active galactic ...
Astronomy
Aug 11, 2022
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The supermassive black hole (SMBH) at our galaxy's core, Sagittarius A*, is modest in size with only 4.15 million solar-masses. The Event Horizon Telescope (EHT) recently released a dramatic submillimeter image of it as seen ...
Astronomy
Jun 24, 2022
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The fastest-growing black hole of the last 9 billion years has been discovered by an international team led by astronomers at The Australian National University (ANU).
Astronomy
Jun 15, 2022
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The first image of the supermassive black hole at the center of our Milky Way galaxy brings radio astronomy back to its celestial birthplace. The Event Horizon Telescope (EHT), a worldwide collection of millimeter-wave radio ...
Astronomy
May 13, 2022
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Powerful enough to spot a golf ball on the moon, the Event Horizon Telescope (EHT) is a network of radio dishes designed to detect the light cast when matter disappears into the maw of a black hole.
Astronomy
May 12, 2022
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Despite decades of study, black holes are still among the most powerful and mysterious celestial objects ever studied. Because of the extreme gravitational forces involved, nothing can escape the surface of a black hole (including ...
Astronomy
May 4, 2022
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Nearby black holes and their stellar companions form an astrophysical rogues' gallery in this new NASA visualization.
Astronomy
May 3, 2022
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