Latest Cosmic Evolution Survey Stories

Twisted Path Ancient Light Mapped
2013-10-23 09:11:27

John P. Millis, PhD for redOrbit.com - Your Universe Online When astronomers peer into the deepest regions of the cosmos they are not seeing the Universe as it exists today, but rather how it looked billions of years ago. That's because light emitted by distant galaxies moves at a finite speed and therefore requires billions of years to reach Earth. Further complicating the matter is the fact that the light does not travel along a direct line of site to Earth. The photons are deflected...

Why Do Quenched Galaxies Seem To Keep Growing?
2013-08-02 04:02:20

redOrbit Staff & Wire Reports - Your Universe Online Thanks to new data obtained from the Hubble Cosmological Evolution Survey (COSMOS), researchers have solved the mystery as to why some galaxies appear to grow larger even after they no longer form new stars. Once galaxies reach a point in their lives when they cease star formation, they are known as "quenched" galaxies, report the authors of the new study. Quenched galaxies in the distant past appear to be much smaller than those...

Wallaby And Dingo Telescopes Set To Find 700,000 New Galaxies In 2013
2012-12-31 06:55:59

Lawrence LeBlond for redOrbit.com - Your Universe Online Australian astronomers are expecting two sky surveys will be on par to discover some 700,000 new galaxies in 2013. The sky surveys, named Wallaby and Dingo, were officially opened earlier this year as part of the Australian Square Kilometer Array Pathfinder (Askap). The $105 million Askap is located in a remote desert region of Western Australia, roughly 200 miles from Geraldton. Askap consists of 36 dishes, each 39 feet wide,...

The Local Universe Offered Up In Unprecedented Detail
2012-10-31 13:21:28

Lee Rannals for redOrbit.com - Your Universe Online The intimate details of 100 galaxies in the local universe have been published by the Calar Alto Legacy Integral Field Area survey (CALIFA). The survey offers up new data, representing the first large-scale effort at "two plus one" mapping of galaxies. For every pixel within each two-dimensional image, scientists could perform a detailed analysis and provide information about dynamics and chemical composition. This information could...

New SCUBA-2 Camera Reveals Wild Youth Of The Universe
2012-03-27 08:14:50

A team of astronomers from the UK, Canada and the Netherlands have commenced a revolutionary new study of cosmic star-formation history, looking back in time to when the universe was still in its lively and somewhat unruly youth! The consortium, co-led by University of Edinburgh astrophysicist Professor James Dunlop, is using a brand new camera called SCUBA-2, the most powerful camera ever developed for observing light at "sub-mm" wavelengths (light that has a wavelength 1000 times longer...

Image 1 - VISTA Stares Deep into the Cosmos
2012-03-22 07:52:34

[ Watch the Video ] Treasure trove of new infrared data made available to astronomers ESO's VISTA telescope has created the widest deep view of the sky ever made using infrared light. This new picture of an unremarkable patch of sky comes from the UltraVISTA survey and reveals more than 200 000 galaxies. It forms just one part of a huge collection of fully processed images from all the VISTA surveys that is now being made available by ESO to astronomers worldwide. UltraVISTA is a...

When Galaxy Clusters Collide
2012-01-10 15:18:03

A UC Davis graduate student who is leading a study of the collision of galaxy clusters 5 billion light years away discussed the team´s findings today, Jan. 10, in a press briefing at the annual meeting of the American Astronomical Society in Austin, Texas. “A galaxy cluster is like a little universe, because it has the same matter composition as the whole universe,” said William Dawson, a Ph.D. candidate in physics. “By studying this little universe, we can learn...

2011-07-13 06:35:00

A new study combining data from ESO's Very Large Telescope and ESA's XMM-Newton X-ray space observatory has turned up a surprise. Most of the huge black holes in the centers of galaxies in the past 11 billion years were not turned on by mergers between galaxies, as had been previously thought. At the heart of most, if not all, large galaxies lurks a supermassive black hole with a mass millions, or sometimes billions, times greater than that of the Sun. In many galaxies, including our own...

2010-03-25 07:35:00

A group of astronomers [1], led by Tim Schrabback of the Leiden Observatory, conducted an intensive study of over 446 000 galaxies within the COSMOS field, the result of the largest survey ever conducted with Hubble. In making the COSMOS survey, Hubble photographed 575 slightly overlapping views of the same part of the Universe using the Advanced Camera for Surveys (ACS) onboard Hubble. It took nearly 1000 hours of observations. In addition to the Hubble data, researchers used redshift [2]...

2010-03-22 13:02:55

The Hubble Space Telescope will devote an unprecedented amount of time over the next few years to documenting galaxy evolution in the early universe and to studying whether distant supernovae can be extremely reliable measures of distance across vast regions of the cosmos. In this ambitious new project, Hubble will image more than 250,000 distant galaxies in five directions, providing the first comprehensive view of the structure and assembly of galaxies over the first third of cosmic time....

Word of the Day
  • A fool; a simpleton: a term of abuse common in Ireland and to a less extent in the Gaelic-speaking parts of Scotland.
This word is partly Irish in origin.