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.
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Articles sur Astronomy
Affichage de 621 à 640 de 806 articles
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…
Astronomers are trying to improve their hunt for rapid bursts of radio emission in the universe called Fast Radio Bursts (FRBs) so they can better observe these mysterious events, which are thought to…
Watching meteors in the night sky can be fun, although typically you only see a few flashes an hour. But there are certain times of the year when you can see many more – events known as meteor showers…
The Theory of Everything is a film about two people who meet at university and fall in love. But what makes it remarkable is that one of them is Professor Stephen Hawking and that when he and Jane Wilde…
The wise men were likely accomplished Greek astrologers, watching the stars for signs of a king’s birth. Technical terms used in the Bible’s description point to a real astronomical event.
Our understanding of gamma ray bursts (GRBs) – flashes of gamma rays from explosions in distant galaxies – since they were discovered more than 50 years ago may not be as solid as first thought. Research…
The best meteor shower of the year should put on an impressive display this weekend – weather permitting – with the annual Geminids poised to light up the sky with bright, long meteors visible as frequently…
Indigenous Australian practices, developed and honed over thousands of years, weave science with storytelling. In this Indigenous science series, we’ll look at different aspects of First Australians’ traditional…
Les contributeurs les plus fréquents
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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
