New research using the Hubble Space Telescope reveals that galaxies may be forming at faster rates than previously believed.
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Articles on Galaxies
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This observation means astronomers can now develop and test theories that explain how high-mass stars gain their mass.
New research shows how chemical elements mix in the universe. Without this process, you wouldn't be here.
Will we have to rewrite Einstein's theory of gravity? The DESI experiment could find out.
New research shows the supermassive black hole at the centre of the Milky Way spat out an enormous beam of radiation 3.5 million years ago
Maps of the long filaments of gas that hold the universe together may one day help us trace and unveil 'dark matter'.
The rate of the universe's expansion is in dispute. But a new kind of measurement offers hope.
Why do astronomers believe there's dark matter when it cannot be directly detected? Let's look at the evidence, and see what dark matter's presence means for our universe.
The diameter of the Milky Way is a billion billion kilometres.
The Milky Way’s disc of stars becomes increasingly warped and twisted the further away they are from the galaxy’s centre.
New research suggests we may be able to forget about dark matter if we tweak the laws of gravity according to imaginary bubbles in space.
Life could exist in another solar system in a different part our galaxy. Or in another galaxy far away. We don't have the perfect technology yet to study such far away places but we're still trying.
When you look up at the vastness of space you can see hundreds, thousands and even millions of years into the past.
At the end of the day, the problem is that no-one on Earth wants nuclear waste stored near them, and it's not safe or cost-effective to blast it into space.
A black hole is an object with such a strong gravitational pull that nothing, not even light, can escape from it.
Perhaps precisely because they are so elusive, Fast Radio Bursts have received a lot of attention in the years since their discovery.
There are probably more than a million planets in the universe for every single grain of sand on Earth. That's a lot of planets. My guess is that there probably is life elsewhere in the Universe.
We are in the Milky Way. If you travelled on an extremely fast spaceship for more than two million years, you would reach our neighbour, the Andromeda galaxy. All other galaxies are even further away.
Pretty much as soon as we understood what galaxies were, we realised they are all moving away from each other. And the ones that are further away are moving faster. In short, the universe is expanding.
As galaxies get older they get rounder, and fall victim to the middle-aged spread that catches many of us humans here on Earth.
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Honorary Fellow of the University of Melbourne and Senior Curator (Astronomy), Museums Victoria
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Professor of Astrophysics and Royal Society University Research Fellow, University of Hertfordshire
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Post-doctoral researcher in Astrophysics, University of the Western Cape
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Associate professor in astronomy, Monash University
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Professor, The University of Queensland
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Senior Lecturer in Physics, University of Hull
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SKA Postdoc in Observational Cosmology, University of the Western Cape
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Senior Lecturer at Astrophysics Research Institute, Liverpool John Moores University
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PhD Candidate, The University of Queensland
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Professor, School of Science, Western Sydney University
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Professor of Astrophysics, University of Sydney
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Head of Education and Public Outreach LSST, Australian Astronomical Observatory
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Professor (Astrophysics), University of Southern Queensland
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Alice Gorman is a Friend of The Conversation.
Senior Lecturer in Archaeology and Space Studies, Flinders University
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ARC Australian Laureate Fellow, School of Physics, University of Melbourne
