A spinning black hole is pumping vast amounts of energy back into the surrounding universe, but something is causing the jets that transport that energy to wobble very rapidly.
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Articles on Black holes
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Astronomers say they have "seen what we thought was unseeable" in releasing the first image of a supermassive black hole. So how did we get to this historic observation?
Scientists turned Earth into one giant telescope to capture the uncapturable.
Feel like visiting another star system or dimension? You can do this by traveling through a spacetime portal of a black hole. But you better choose carefully. All black holes are not created equal.
The crucial phase of our discovery of black holes took place in a suitably dark period of human history – World War II.
A black hole is an object with such a strong gravitational pull that nothing, not even light, can escape from it.
More ripples in space-time have been detected from merging pairs of black holes, one of which was the most massive and distant gravitational-wave source ever observed.
Astronomers have suspected them for ages –now a team as finally spotted a 'fountain' in a galaxy far, far away.
The Swift Observatory passed a milestone: 1 million snapshots of the universe. These exquisite and revealing pictures have captured the births and deaths of stars, gravitational waves and comets.
It's all about the strong gravitational field of the black hole.
A detector buried under more than a mile of ice in Antarctica has detected a high-energy subatomic neutrino and traced it to its origin, a blazar – a gargantuan black hole more than a billion times more massive than the sun.
The pull created by a black hole is so strong that if you get too close to one – even if you are travelling away from it at the fastest speed it is possible to go – you will never be able escape.
A team of astronomers captured the moment when a wayward star was pulled into the mouth of a supermassive black hole.
Astronomers are gathering an exponentially greater amount of data every day – so much that it will take years to uncover all the hidden signals buried in the archives.
The little-known Rossi X-ray Timing Explorer spacecraft was like a Geiger counter for the universe, listening to black holes and zombie stars.
Stephen Hawking raised the public profile of grand science, and speculated about the future of artificial intelligence, as well as contacting aliens. Does science mix easily with science fiction?
There could be thousands of black holes at the heart of the Milky Way.
The famous cosmologist was closely identified with black holes due to his revolutionary theoretical work explaining some of their mysterious properties.
Despite his fears artificial intelligence might one day overtake humanity, Stephen Hawking knew from his own life how profoundly AI could improve humans' daily lives.
UK's Astronomer Royal Martin Rees shares his memories of the physicist Stephen Hawking, who has died at the age of 76.
Top contributors
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Professor of Astrophysics, University of Sydney
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Emeritus Professor, ARC Centre of Excellence for Gravitational Wave Discovery, OzGrav, University of Western Australia
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Professor and ARC Future Fellow, University of Sydney
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Lecturer and ARC Future Fellow, Monash University
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Senior Lecturer in Physics, University of Hull
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Professor of Astronomy, Swinburne University of Technology
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Associate professor, University of Western Australia
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ARC Laureate Fellow, Swinburne University of Technology., Swinburne University of Technology
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Associate Professor, Curtin University
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Associate Professor and Research Fellow, Swinburne University of Technology
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Researcher, Swinburne University of Technology, Swinburne University of Technology
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Honorary Fellow of the University of Melbourne and Senior Curator (Astronomy), Museums Victoria
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Associate Professor, The University of Queensland
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Professor of Gravitational Astrophysics and Cosmology, University of Glasgow
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Professor of Physics and Mathematics, Queen's University Belfast
