News tagged with cluster galaxies

Young stars take a turn in the spotlight

(PhysOrg.com) -- ESO's New Technology Telescope (NTT) has captured a striking image of the open cluster NGC 2100. This brilliant star cluster is around 15 million years old, and located in the Large Magellanic ...

Sep 07, 2011
5 / 5 (3) 1 | with audio podcast

The central region of the Milky Way

(PhysOrg.com) -- The center of our Milky Way galaxy is about 27,000 light-years away in the direction of the constellation of Sagittarius. At the very center of the galaxy lies a black hole whose mass is about ...

Aug 15, 2011
4.7 / 5 (22) 19 | with audio podcast

Building galaxies

(PhysOrg.com) -- Galaxies frequently collide with one another. Our own Milky Way galaxy, for example, and its nearest giant neighbor, the Andromeda galaxy, are heading towards each other at a rate of about ...

Jul 11, 2011
5 / 5 (2) 10 | with audio podcast

Astronomers reveal a cosmic 'axis of evil'

(PhysOrg.com) -- Astronomers are puzzled by the announcement that the masses of the largest objects in the Universe appear to depend on which method is used to weigh them. The new work was presented at a specialist ...

Jun 30, 2011
4.8 / 5 (17) 23 | with audio podcast

Gamma-ray emission from Terzan 5

(PhysOrg.com) -- The H.E.S.S. telescope system in Namibia discovered a new source of very-high-energy gamma-rays from the direction of the globular cluster Terzan 5. Being very likely located in the outer ...

Jun 24, 2011
4.8 / 5 (4) 2 | with audio podcast

A galactic crash investigation

(PhysOrg.com) -- A team of scientists has studied the galaxy cluster Abell 2744, nicknamed Pandora’s Cluster. They have pieced together the cluster’s complex and violent history using telescopes ...

Jun 22, 2011
4.8 / 5 (4) 5 | with audio podcast

Understanding stellar birth using old star clusters

It is now known that most, if not all, of the stars in our Galaxy were born in star clusters. These spherical groupings contain anywhere from a few tens to several million members all milling about under the influence of ...

Jun 01, 2011
4.8 / 5 (5) 14

'Dead' galaxies are not so dead after all

(PhysOrg.com) -- University of Michigan astronomers examined old galaxies and were surprised to discover that they are still making new stars. The results provide insights into how galaxies evolve with time.

May 30, 2011
4.7 / 5 (11) 6 | with audio podcast

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