News tagged with galaxy cluster

Examining the Great Wall

Structure exists on nearly all scales in the universe. Matter clumps under its own gravity into planets, stars, galaxies, clusters, and superclusters. Beyond even these in scale are the filaments and voids. ...

May 10, 2011 5 / 5 (3) 5

Dark statistics

The hypothetical dark flow seen in the movement of galaxy clusters requires that we can reliably identify a clear statistical correlation in the motion of distant objects which are, in any case, flowing o ...

Mar 28, 2011 4.8 / 5 (13) 15

Enriching the intracluster medium

(PhysOrg.com) -- Galaxies are sometimes found in large clusters with many hundreds of members. Typically there is a giant elliptical galaxy near the center; most of these ellipticals are very bright emitters ...

Mar 22, 2011 5 / 5 (2) 4

The warped ways of cosmic light

Albert Einstein predicted them, modern giant telescopes detected them – and Klaus Dolag simulates them on a computer: gravitational lenses. The academic staff member at the Max Planck Institute for Astrophysics ...

Mar 02, 2011 4 / 5 (6) 2

Hubble zooms in on a space oddity

A strange, glowing green cloud of gas that has mystified astronomers since its discovery in 2007 has been studied by Hubble. The cloud of gas is lit up by the bright light of a nearby quasar, and shows signs ...

Jan 10, 2011 4.9 / 5 (13) 12 | with audio podcast