Do all big black holes in very massive galaxies emit radio waves? We used the latest radio telescopes to find out.
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Articles on Black holes
Displaying 1 - 20 of 130 articles
Einstein’s theory of general relativity suggests that our universe originated in a Big Bang. But black holes, and their gravitational forces, challenge the limits of Einstein’s work.
An astronomer and ‘black hole historian’ explains how the parts of the universe black holes grow in might influence how quickly they become bright, supermassive objects.
Black holes are known for pulling in all kinds of stuff – including light. Here’s how that actually works.
Astronomers have for the first time detected the background hum of gravitational waves likely caused by merging black holes.
New data from the IceCube collaboration shows neutrino emissions from within our Milky Way galaxy – but figuring out where exactly these ghost particles come from is harder than it seems.
Radiation from the brightest cosmic explosion ever seen may have been mixing with gas and dust around its dying star – making the signal last longer.
Upgrades to the hardware and software of the advanced observatory should allow astrophysicists to detect much fainter gravitational waves than before.
Artificial intelligence tools are making waves in almost every aspect of life, and astronomy is no different. An astronomer explains the history and future of AI in understanding the universe.
Beyond just looking at black holes, the next-generation Event Horizon Telescope collaboration is the first to bring together perspectives from across the sciences and humanities.
Many telescopes use the radio spectrum to learn about the cosmos. Just as human development leads to more light pollution, increasing numbers of satellites are leading to more radio interference.
Astronomers have found that mysterious dark energy may originate in black holes.
Black holes can have a mass equivalent to that of millions of suns. Other, smaller, black holes can combine the mass of Mount Everest into the size of an atom.
While we can’t see inside a black hole, we can spot the intensely bright glowing disc that surrounds one. Now, we might better understand why these discs appear to ‘twinkle’.
To understand this question, we need to travel back in time.
Black holes could take us to the future, and maybe even the past. The hard part would be surviving the trip.
Gamma-ray bursts occur when a massive star explodes or when two neutron stars merge. A newly discovered burst has puzzled astronomers, as it lasted much longer than astronomers would have expected.
An astrophysicist explains what wormholes are and how these theoretical space-time tunnels have popped up in the solutions to a set of decadesold equations.
Over 1 million light-years end to end, the pressurised jet shoots away from a central black hole in a nearby galaxy.
Astronomers have discovered the first dormant black hole outside of the Milky Way. These black holes are not absorbing matter from a nearby star, making them incredibly hard to find.
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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, The University of Western Australia
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University Distinguished Professor of Astronomy, University of Arizona
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Professor, University of Sydney
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Senior Lecturer in Physics, University of Hull
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Professor, Curtin University
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Professor of Theoretical Astrophysics, Monash University
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Professor of Astronomy, Swinburne University of Technology
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Senior Lecturer and ARC Future Fellow, Monash University
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Professor, Physics & Astronomy, Bishop's University
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Pro Vice-Chancellor Flagship Initiatives, Swinburne University of Technology
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Associate professor, The University of Western Australia
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JASPER Postdoctoral Researcher, University of Arizona
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Postdoctoral Research Fellow, Centre for Astrophysics and Supercomputing, Swinburne University of Technology
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ARC Laureate Fellow, Swinburne University of Technology
