News tagged with cluster galaxies

Large galaxies stopped growing 7 billion years ago

(PhysOrg.com) -- Galaxies are thought to develop by the gravitational attraction between and merger of smaller 'sub-galaxies', a process that standard cosmological ideas suggest should be ongoing. But new ...

Apr 20, 2011
4.9 / 5 (7) 4 | with audio podcast

The most distant mature galaxy cluster

Astronomers have used an armada of telescopes on the ground and in space, including the Very Large Telescope at ESO's Paranal Observatory in Chile to discover and measure the distance to the most remote mature ...

Mar 09, 2011
4.9 / 5 (9) 70 | with audio podcast

The two-faced whirlpool galaxy

(PhysOrg.com) -- These images by NASA's Hubble Space Telescope show off two dramatically different face-on views of the spiral galaxy M51, dubbed the Whirlpool Galaxy.

Jan 14, 2011
4.9 / 5 (8) 0 | with audio podcast

Planck unveils wonders of the Universe (w/ Video)

(PhysOrg.com) -- The first scientific results from ESA’s Planck mission were released at a press briefing today in Paris. The findings focus on the coldest objects in the Universe, from within our Galaxy ...

Jan 11, 2011
4.9 / 5 (8) 1 | with audio podcast

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

Cluster collisions switch on radio halos

(PhysOrg.com) -- This is a composite image of the northern part of the galaxy cluster Abell 1758, located about 3.2 billion light years from Earth, showing the effects of a collision between two smaller galaxy ...

Aug 30, 2010
4.8 / 5 (9) 0 | with audio podcast

Scientists get a look at the birth of the Milky Way

(PhysOrg.com) -- For the first time, a team of astronomers has succeeded in investigating the earliest phases of the evolutionary history of our home Galaxy, the Milky Way. The scientists, from the Argelander ...

Jun 21, 2010
4.4 / 5 (14) 2 | with audio podcast

A cluster and a sea of galaxies (w/ Video)

(PhysOrg.com) -- A new wide-field image released today by ESO displays many thousands of distant galaxies, and more particularly a large group belonging to the massive galaxy cluster known as Abell 315. As ...

May 05, 2010
4.9 / 5 (14) 9 | with audio podcast