Latest Galaxy Stories

Astronomers Find Peanut Sitting In Middle Of Milky Way
2013-09-12 10:32:13

[ Watch the Video: Artist's Impression Of The Milky Way ] Lee Rannals for redOrbit.com - Your Universe Online Astronomers, publishing two papers in the journal Astronomy & Astrophysics, say they've found a peanut sitting in the heart of the Milky Way galaxy. Two teams used data from European Southern Observatory (ESO) telescopes to create a three-dimensional map of the central parts of the Milky Way. While crafting the map they found that the inner regions of the galaxy take on a...

Clumpy Structure Makes Disk Galaxies Look Alike Over Time
2013-09-12 06:49:36

redOrbit Staff & Wire Reports - Your Universe Online Researchers at Iowa State University and IBM have identified why virtually all disk galaxies grow out of their irregular, clumped appearance, and why their older stars acquire the same smooth look as they fade from a bright center to a faint edge. The astronomers say that whether these young disk galaxies are big, small, isolated or crowded in a cluster, the reason they all eventually look alike is due to their clumpy structure,...

Mapping Location Of Galactic Clouds
2013-09-11 14:31:55

[ Watch the Video: Mapping Our Milky Way Galaxy ] Lee Rannals for redOrbit.com - Your Universe Online Astronomers using the 22-meter Mopra Telescope in Coonabarabran, Australia have begun mapping the location where stars are born. In January, wildfires destroyed the telescope's adjoining workshop, office and accommodations, but Mopra's control room was spared because it was encased in brick. The team from the University of New South Wales (UNSW) wrote in the journal Publications of...

New Theory Explains Expansion Of Universe
2013-09-10 08:47:37

John P. Millis, PhD for redOrbit.com - Your Universe Online For the better part of a century the astronomical community has understood that the Universe is expanding, yet the exact nature of this expansion has been difficult to quantify. One extreme instance of this is the acceleration of galaxies receding from us billions of light-years away. But even looking closer to home, calculating the rate of expansion has proven difficult. Traditionally, scientists, measuring the recession...

Bizarre Alignment Observed In Butterfly-Shaped Nebulae
2013-09-04 08:57:07

Lee Rannals for redOrbit.com - Your Universe Online A new study by astronomers from the University of Manchester shows how planetary nebulae line up in the sky in the same way. A planetary nebula occurs in the final stages of a star's life when its outer layers begin to stretch out into the surrounding space. Such nebulae can create beautiful objects in the night sky, with some stretching out into an hourglass or butterfly shape. The latest research, published in the Monthly Notices of...

Modified Gravity Theory Predicts Galaxy Dynamics
2013-08-29 10:22:45

John P. Millis, PhD for redOrbit.com - Your Universe Online For decades astronomers have studied the motions of galaxies – their rotations about their axes, as well as their interactions with each other – and been puzzled by what they have observed. The data suggests one of two possibilities: either these galaxies, and the space between them, contain significantly more mass than what is seen, or our physical understanding of gravity is flawed. The oft-discussed solution is that...

ALMA Workers Strike
2013-08-23 12:34:07

Brett Smith for redOrbit.com - Your Universe Online Despite its remoteness and unique scientific work environment, the Atacama Large Millimeter/Submillimeter Array (ALMA) observatory is not immune to the disputes between workers and management that affect every other industry. On Thursday, almost 200 workers went on strike over compensation that they say is inadequate considering the unusual demands of working in a remote, high-altitude location. The telescopic array is located in...

Hubble Explores Origins Of Galaxies
2013-08-15 11:29:11

John P. Millis, PhD for redOrbit.com - Your Universe Online One of the major astronomical advancements of the 20th century was the ability to study in great detail the galaxies that make up our Universe. Instruments like the Hubble Space Telescope (HST) have brought a level of resolution that has allowed us to trace the history and evolution of galactic dynamics. Currently, galaxies are classified by the Hubble Sequence – a system whereby galaxies are grouped by their sizes, shapes,...

Latest Galaxy Reference Libraries

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...

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...

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...

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.

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
  • A blustering, bullying fellow; a pot-valiant braggart; a bully.
This word is named for Draw-Can-Sir, a character in George Villiers' 17th century play The Rehearsal.