The hunt for dark matter has taken another step forward thanks to new supercomputer simulations showing the evolution of our "local Universe" from the Big Bang to the present day.
Astronomy
Jun 25, 2014
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(Phys.org) —The least massive galaxy in the known universe has been measured by UC Irvine scientists, clocking in at just 1,000 or so stars with a bit of dark matter holding them together.
Astronomy
Jun 10, 2013
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Could it be that dark matter "halos"—the huge, invisible cocoons of mass that envelop entire galaxies and account for most of the matter in the universe—aren't completely dark after all but contain a small number of stars? ...
Astronomy
Oct 24, 2012
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(Phys.org) -- New evidence from NASA's Chandra X-ray Observatory challenges prevailing ideas about how black holes grow in the centers of galaxies. Astronomers long have thought that a supermassive black hole and the bulge ...
Astronomy
Jun 11, 2012
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(PhysOrg.com) -- Astronomers from the Scottish Universities Physics Alliance (SUPA) have produced a completely new catalogue of ~15,000 groups of galaxies that gives a new insight into dark matter, the material of unknown ...
Astronomy
Apr 21, 2011
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The universe consists of a large amount of invisible matter - dark matter. We do not know what it is, but we know that it is there and that without dark matter there would be no galaxies, and hence stars, planets and life ...
General Physics
Aug 10, 2010
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There's a galaxy out there without apparent stars but largely chock full of dark matter. What's that you say? A galaxy without stars? Isn't that an impossibility? Not necessarily, according to the astronomers who found it ...
Astronomy
Jan 17, 2024
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It's difficult to determine the shape of our galaxy. So difficult that only in the last century did we learn that the Milky Way is just one galaxy among billions. So it's not surprising that despite all our modern telescopes ...
Astronomy
Sep 18, 2023
2
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Physicists like me don't fully understand what makes up about 83% of the matter of the universe—something we call "dark matter." But with a tank full of xenon buried nearly a mile under South Dakota, we might one day be ...
General Physics
Aug 9, 2023
5
18
The furthest galaxy ever observed is so far away that the starlight we now detect was emitted less than 500m years after the Big Bang. It has taken about 13 billion years to reach us. But there's a lot of things about a galaxy ...
Astronomy
Oct 17, 2017
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