News tagged with cluster galaxies

Astronomers create first realistic virtual universe

( —Move over, Matrix - astronomers have done you one better. They have created the first realistic virtual universe using a computer simulation called "Illustris." Illustris can recreate 13 billion years of cosmic ...

dateMay 07, 2014 in Astronomy
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Dark matter core defies explanation

( -- Astronomers using data from NASA's Hubble Telescope have observed what appears to be a clump of dark matter left behind from a wreck between massive clusters of galaxies. The result could challenge current ...

dateMar 02, 2012 in Astronomy
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A possible signal from dark matter?

( —Galaxies are often found in groups or clusters, the largest known aggregations of matter and dark matter. The Milky Way, for example, is a member of the "Local Group" of about three dozen galaxies, including ...

dateAug 12, 2014 in Astronomy
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Mysterious X-ray signal intrigues astronomers

( —A mysterious X-ray signal has been found in a detailed study of galaxy clusters using NASA's Chandra X-ray Observatory and ESA's XMM-Newton. One intriguing possibility is that the X-rays are produced by the ...

dateJun 24, 2014 in Astronomy
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Why does the Milky Way rotate?

We live in a galaxy that is called the Milky Way. It's called a barred spiral galaxy, which means that it has a spiral shape with a bar of stars across its middle. The galaxy is rather huge—at least 100,000 light-years ...

dateFeb 11, 2015 in Astronomy
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