The diameter of the Milky Way is a billion billion kilometres.
L’expertise universitaire, l’exigence journalistique
Articles sur Galaxies
Affichage de 61 à 80 de 104 articles
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.
Bigger galaxies tend to dominate the smaller, when the two collide. But the pending battle between our Milky Way and the Andromeda galaxy might be a much fairer fight than we previously thought.
Strangely behaving galaxies force scientists to rethink whether the universe really is uniform.
Massive, far distant galaxies contain 100 times more gas than we thought possible.
A precursor to the Square Kilometre Array- the MeerKAT telescope - is being built right now and remarkable progress has been made in the last 12 months.
Galaxies evolve in mysterious way. But a new study offers a fresh approach to understand them.
Star Trek: Discovery explores our corner of the block – just a fraction of the galaxy. Some stars are better candidates for intelligent alien life, and it may not be anything like we imagine.
Scientists say they now know that high energy cosmic ray particles that bombard Earth are coming from outside our galaxy. But the actual source still remains a mystery.
The first reliable measure of the 3D shape of galaxies and their rotation helps to shed light on their history.
Les contributeurs les plus fréquents
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Associate Professor in Astronomy, Monash University
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Professor of Astrophysics and Royal Society University Research Fellow, University of Hertfordshire
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Senior Curator (Astronomy), Museums Victoria and Honorary Fellow at University of Melbourne, Museums Victoria Research Institute
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Post-doctoral researcher in Astrophysics, University of the Western Cape
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Reader in Theoretical Astrophysics, Liverpool John Moores University
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Professor, School of Science, Western Sydney University
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Senior research scientist, CSIRO
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University Distinguished Professor of Astronomy, University of Arizona
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PhD Candidate, The University of Queensland
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Professor, The University of Queensland
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ARC DECRA Fellow in Astronomy, University of Sydney
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Research Associate, Curtin University
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ARC DECRA Fellow in Astronomy, University of Sydney
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Director of DAIM, University of Hull
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SKA Postdoc in Observational Cosmology, University of the Western Cape
