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Latest Galaxy Stories

2014-06-19 08:21:52

WASHINGTON, June 19, 2014 /PRNewswire-USNewswire/ -- They may be little, but they pack a big star-forming punch. New observations from NASA's Hubble Space Telescope show small galaxies, also known as dwarf galaxies, are responsible for forming a large proportion of the universe's stars. http://photos.prnewswire.com/prnvar/20081007/38461LOGO Studying this early epoch of the universe's history is critical to fully understanding how these stars formed and how galaxies grew and evolved...

Bullet Group
2014-06-14 03:00:23

ESA Galaxies are not as isolated as they at first glance may seem; on a cosmic scale they congregate in clumps along with dark matter and hot gas. The colorful blob in this new composite image, based on data from several telescopes including ESA's XMM-Newton, is the group of galaxies known as the Bullet Group. Its components appear to be clearly separated, with the hot gas partitioned from the rest of the mass within the group. This is the smallest object ever found to show such an effect,...

Astronomers Discover Nearly 200 Previously Unknown 'Red' Galaxies
2014-06-13 11:46:53

John P. Millis, Ph.D. for redOrbit.com - Your Universe Online One of the greatest aspects of NASA’s astronomical research program is that the data accumulated from virtually all of the instruments – X-ray satellites, Infrared detectors, gamma-ray satellites – is available to the public. This means professional and amateur astronomers alike have the ability to make breakthrough discoveries. For instance, in 2007 Dutch school teacher Hanny van Arkel discovered a peculiar blob in an...

Gamma ray burst buried in dust
2014-06-12 04:59:01

redOrbit Staff & Wire Reports - Your Universe Online For the first time ever, scientists using the Atacama Large Millimeter/submillimeter Array (ALMA) have discovered molecular gas in galaxies that had once been rocked by gamma ray bursts, according to new research published Wednesday in the journal Nature. The new observations reveal that the molecular gas, which serves as the fuel for the star formation process, was concentrated towards the center of the galaxies, the study...

Neighboring Satellite Dwarf Galaxies Do Not Fit The Standard Model
2014-06-11 07:37:40

Lawrence LeBlond for redOrbit.com - Your Universe Online An international team of scientists have found that dwarf satellite galaxies that orbit the Milky Way and neighboring Andromeda galaxy defy the standard model of galaxy formation. As well, recent attempts to fit them into the model have been flawed, raising questions about the accuracy of the standard model of cosmology, which has been the long accepted concept for the origin and evolution of the universe. In a paper to be...

hubble evolving Universe
2014-06-04 05:33:24

April Flowers for redOrbit.com - Your Universe Online In a new study called the Ultraviolet Coverage of the Hubble Ultra Deep Field (UVUDF) project, the most comprehensive and colorful picture of the evolving universe has been captured by astronomers using the Hubble Space Telescope. Prior to the UVUDF study, astronomers knew a great deal about star formation that occurred in nearby galaxies, thanks to UV telescopes such as NASA's GALEX observatory. The astronomers were also able to...

2014-06-03 16:21:10

WASHINGTON, June 3, 2014 /PRNewswire-USNewswire/ -- Astronomers using NASA's Hubble Space Telescope have assembled a comprehensive picture of the evolving universe - among the most colorful deep space images ever captured by the 24-year-old telescope. http://photos.prnewswire.com/prnvar/20081007/38461LOGO Researchers say the image, in new study called the Ultraviolet Coverage of the Hubble Ultra Deep Field, provides the missing link in star formation. The Hubble Ultra Deep Field...

Smith Cloud Survives Galactic Collision Thanks To Full Dark-matter Facket
2014-05-23 03:44:33

National Radio Astronomy Observatory Like a bullet wrapped in a full metal jacket, a high-velocity hydrogen cloud hurtling toward the Milky Way appears to be encased in a shell of dark matter, according to a new analysis of data from the National Science Foundation's Robert C. Byrd Green Bank Telescope (GBT). Astronomers believe that without this protective shell, the high-velocity cloud (HVC) known as the Smith Cloud would have disintegrated long ago when it first collided with the disk...

Cosmic Clumps Cast Darkest Shadows Ever Recorded
2014-05-22 03:51:02

Whitney Clavin, NASA's Jet Propulsion Laboratory Astronomers have found cosmic clumps so dark, dense and dusty that they throw the deepest shadows ever recorded. Infrared observations from NASA's Spitzer Space Telescope of these blackest-of-black regions paradoxically light the way to understanding how the brightest stars form. The clumps represent the darkest portions of a huge, cosmic cloud of gas and dust located about 16,000 light-years away. A new study takes advantage of the...

NASA's "Star Catcher" Examined In A New "Behind The Webb" Video
2014-05-22 03:46:07

[ Watch The Video: Star Catcher: Behind The Webb ] Rob Gutro, NASA Catching glimpses of early stars is one of the things that the Near Infrared Camera or NIRCam will do when it flies aboard the James Webb Space Telescope. "Star Catcher" is the title of the newest video in the "Behind the Webb" series that takes viewers behind the scenes to understand more about the Webb telescope. Mary Estacion of the Space Telescope Science Institute (STScI) in Baltimore, Md. hosts the series....


Latest Galaxy Reference Libraries

Cosmology
2014-01-12 00:00:00

Image Caption: The Hubble Extreme Deep Field (XDF) was completed in September 2012 and shows the farthest galaxies ever photographed by humans. Each speck of light in the photo is an individual galaxy, some of them as old as 13.2 billion years; the observable universe is estimated to contain more than 200 billion galaxies. Credit: NASA/Wikipedia What is Cosmology? I once commented to an acquaintance that I was fascinated by the field of Cosmology, and mused that if I had more time, I...

45_d4a20fda769b165e44826492e9e54549
2010-09-16 15:18:29

The Virgo Cluster consists of galaxies at a distance of around 59 Mly away in the constellation Virgo. Containing between 1300 to 2000 galaxies the Virgo Cluster is the heart of the Local Supercluster. Its mass is estimated at 1.2 × 1015 M☉ out to 8 degrees of the cluster's center or a radius of about 2.2 Mpc. Most of the brighter galaxies in the cluster were discovered by Charles Messier in the late 1770's and early 1780's, including the giant elliptical Messier 87. Messier...

45_9843bacae4e6aaccde9ad6442185fc8e
2010-09-16 15:14:03

The two Magellanic Clouds (or Nubeculae Magellani), composed of the Large Megellanic Cloud and the Small Magellanic Cloud, are irregular dwarf galaxies visible in the southern hemisphere. They are members of our Local Group and orbit the Milky Way galaxy. Persian astronomer Al Sufi, in 964, was the first to have written anything about the Magellanic Clouds proving they have been known since early time amongst the Middle East peoples. Sufi, in his Book of Fixed Stars, calls the clouds...

67_663c28d472128bcb018b26f3ca4cd648
2010-09-13 17:11:43

The M96 Group (also known as the Leo I Group), one of many in the Virgo Supercluster, is located within the Leo constellation and contains between 8 and 24 galaxies, including three Messier objects. The Leo Triplet, which is physically near M96 Group, and M96 may actually be separate parts of a much larger group.

67_8b8b742d654cb21ec4a1143054c4c9da
2010-09-13 17:09:55

The M81 Group, containing the well known galaxies Messier 81 and Messier 82, is a group of galaxies within the constellation Ursa Major. Along with Messier 81 and 82 are several other galaxies with apparent brightness. The center, located at an approximate distance of 3.6 Mpc, is one of the nearest groups to the Local Group. The total estimated mass of the group is (1.03 ± 0.17) × 1012M☉. The Virgo Supercluster contains the M81 Group, the Local Group, and some other nearby...

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Word of the Day
omadhaun
  • 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.