Astronomers have spotted the earliest known stars in the universe, belonging to a class of chemically pure stars that may never have been seen before.
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Articles on Astronomy
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Cleo Loi was an undergraduate when she made a startling discovery. Her story shows how brilliance, dedication and imagination drive science.
Astronomers used to probing the universe always knew that strange signals detected by the Parkes radio telescope were coming from somewhere closer to home. But finding the source was the tricky bit.
Astronomers aren’t mere stargazers these days. One researcher explains the ins and outs of how they collect data from far-off galaxies and what they do with it back at the office.
After a slow start, Hubble’s ultraviolet vision changed the face of astronomy.
Astronomers from around the world identify their favourite images sent back to Earth by the Hubble Space Telescope.
An unremarkable speck in the sky was transformed into an unique astronomical object – and Hubble was there to capture it.
Hubble’s Deep Field images are the next best thing to a time machine, revealing details of galaxies from the early universe, 13 billion years ago.
Einstein’s theory of gravity says dark energy must be out there, accelerating the expansion of our universe. But what is it and how can we try to figure out more about it?
The Hubble Space Telescope launched 25 years ago in 1990. But O'Dell started on the project in 1972, garnering support for the world’s first telescope free of Earth’s atmosphere’s blurring effects.
Twenty-five years on and the Hubble Space Telescope is still taking some amazing images. But there have been a few glitches over the years, right from day one.
Scientists know so much about dark matter apart from what it is exactly. But are they getting any closer?
From a big blue marble to a tiny dot in space – reflections on our images of Earth.
A solar eclipse is something to behold, but they’re rare and useful events for testing scientific theories too.
Solar eclipses may not be a once in a lifetime event, but being able to see them from home is rare enough.
Several dwarf galaxies have been discovered close to our own Milky Way and are adding to our understanding of how galaxies form. But why haven’t astronomers seen them before?
In a few billion years, the sun will become a red giant so large that it will engulf our planet. But the Earth will become uninhabitable much sooner than that. After about a billion years the sun will…
As an astronomer, I get a lot of requests for help. “I’d like to buy a telescope,” the conversation usually goes. “Can you give me some tips on what to look for?” Sadly, there’s little advice I can offer…
Two white dwarfs found orbiting each other at the centre of a planetary nebula are now known to have enough mass that they will eventually trigger a special kind of supernova, according to research published…
Meteors have been seen since people first looked at the night sky. They are comprised of small pieces of debris, typically no larger than a grain of dust or sand, which continually crash into the Earth’s…
Top contributors
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Professor (Astrophysics), University of Southern Queensland
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Senior Curator (Astronomy), Museums Victoria and Honorary Fellow at University of Melbourne, Museums Victoria Research Institute
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Associate Professor in Astronomy, Monash University
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University Distinguished Professor of Astronomy, University of Arizona
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Associate Professor, The University of Melbourne
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Professor of Astrophysics, University of Sydney
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Professor, University of Sydney
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Professor, School of Science, Western Sydney University
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John Curtin Distinguished Professor (Radio Astronomy), Curtin University
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Pro Vice-Chancellor Flagship Initiatives, Swinburne University of Technology
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Senior Lecturer in Physics, Nottingham Trent University
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Lecturer in Astronomy, Nottingham Trent University
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Dean of Science, University of California, Santa Cruz
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Associate professor, The University of Western Australia
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Lecturer, Centre for Astrophysics and Supercomputing, Swinburne University of Technology
