News tagged with cluster of galaxies

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A possible signal from dark matter?

(Phys.org) —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, ...

Aug 12, 2014 4.5 / 5 (65) 101

Hubble image: Don't trust your eyes

(Phys.org)—The Universe loves to fool our eyes, giving the impression that celestial objects are located at the same distance from Earth. A good example can be seen in this spectacular image produced by ...

Dec 31, 2012 4.5 / 5 (13) 39 | with audio podcast

A family portrait of galaxies

(Phys.org)—Two very different galaxies feature in this family portrait taken by the NASA/ESA Hubble Space Telescope, together forming a peculiar galaxy pair called Arp 116. The image shows the dramatic ...

Sep 06, 2012 5 / 5 (1) 10 | with audio podcast

A super cluster of galaxies

(Phys.org)—Most galaxies lie in clusters, groupings of several to many thousands of galaxies. Our Milky Way galaxy itself is a member of the "Local Group," a band of about fifty galaxies whose other large ...

Aug 28, 2012 5 / 5 (7) 22 | with audio podcast