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 Universe
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If we lived in a cosmic area with below average density, it would explain recent contradictory measurements of the universe’s expansion.
The universe is expanding faster than physicists would expect. To figure out what processes underlie this fast expansion rate, some researchers are first trying to rule out what processes can’t.
In September 2023, a NASA mission successfully brought samples of an asteroid down to Earth in a sealed capsule. Analysis of these samples may reveal information about the origins of the universe.
Viral headlines would have you think Saturn’s rings will vanish in just 18 months. Here’s what that really means and why you don’t need to worry.
The universe appears to be fine-tuned for life to evolve.
If the average amount of information conveyed by an event is always decreasing, it could mean we live in a computer program.
An astronomer explains why space looks so dark despite containing 200 billion trillion stars.
Planetary analogues are sites on Earth that are so extreme that they replicate those of celestial bodies in our solar system.
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.
A new hypothesis suggests that the universe may be twice as old as we had believed. Observations from the James Webb Space Telescope provide new information on the rate of the universe’s expansion.
Black holes are known for pulling in all kinds of stuff – including light. Here’s how that actually works.
To find out what is beyond space, a good place to start would be to figure out where space – our universe – ends.
The darkness of the night sky seems so obvious as to need no explanation – yet it has intrigued and baffled scientists for centuries.
Our Sun will likely go out quietly – but not all such stars do. A new radio detection of a supernova can help us better understand these cosmic cataclysms.
Different measures of the rate of the Universe’s expansion give different results – and a new measurement technique only makes matters more complicated.
A spacecraft set to launch this year will throw a spotlight on the mysterious ‘dark side’ of the universe.
The most energetic events in the universe shower us with unbelievably energetic particles of light. Capturing these can help us to solve some enticing cosmic mysteries.
🎧 Listen to the trailer for Great Mysteries of Physics, a new podcast.
People travel hundreds or thousands of miles and spend a fortune to see the night sky in all its splendor. But we are literally blocking out the cosmic beauty above our homes.
Top contributors
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Professor of Astrophysics, University of Sydney
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Associate Professor in Astronomy, Monash University
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Pro Vice-Chancellor Flagship Initiatives, Swinburne University of Technology
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ARC Laureate Fellow & Distinguished Professor, Centre for Astrophysics & Supercomputing, Swinburne University of Technology
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Emeritus Professor of Cosmology and Astrophysics, University of Cambridge
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Senior Curator (Astronomy), Museums Victoria and Honorary Fellow at University of Melbourne, Museums Victoria
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Reader in Astrophysics, UCL
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Cosmologist, University of Tasmania
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Professor, The University of Queensland
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Postdoctoral Research Fellow, Centre for Astrophysics and Supercomputing, Swinburne University of Technology
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Associate Professor of Astronomy, Boise State University
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Professor (Astrophysics), University of Southern Queensland
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Associate Professor, Macquarie University
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Emeritus Professor, ARC Centre of Excellence for Gravitational Wave Discovery, OzGrav, The University of Western Australia
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John Curtin Distinguished Professor (Radio Astronomy), Curtin University
