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Last updated on April 18, 2014 at 11:57 EDT

Latest Dwarf galaxy Stories

dwarf galaxy NGC 4395
2014-03-27 04:42:05

redOrbit Staff & Wire Reports - Your Universe Online While experts might not know exactly how supermassive black holes grow to sizes up to a billion times that of our sun, astronomers using NASA’s Wide-field Infrared Survey Explorer (WISE) believe they have discovered the so-called cosmic seeds that will ultimately become gravity-rich regions from which light cannot escape. Black holes come in various sizes, with the smallest ones only a few times greater in mass than our sun and...

Andromeda galaxy
2014-02-24 04:27:39

redOrbit Staff & Wire Reports - Your Universe Online An international team of astronomers studying the satellite galaxies surrounding Andromeda has for the first time observed the remnant of a merger between two low-mass dwarf galaxies, according to new research published online Sunday in the journal Nature. The study authors, who hail from the Niels Bohr Institute at the University of Copenhagen, the University of Cambridge’s Institute of Astronomy and the Max Planck Institute...

Abell 1795
2014-01-09 04:13:33

[ Watch the Video: A Tour of Galaxy Cluster Abell 1795 ] Lee Rannals for redOrbit.com - Your Universe Online NASA’s Chandra X-ray Observatory has helped astronomers witness the first event of a black hole destroying a star in a dwarf galaxy. Two independent studies using data from Chandra and other telescopes have led scientists to believe they have found what appears to be a star being consumed by a black hole. “We can’t see the star being torn apart by the black hole,”...

2013-09-24 16:20:10

WASHINGTON, Sept. 24, 2013 /PRNewswire-USNewswire/ -- Astronomers using NASA's Hubble Space Telescope and Chandra X-ray Observatory and telescopes on the ground may have found the most crowded galaxy in our part of the universe. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) The ultra-compact dwarf galaxy, known as M60-UCD1, is packed with an extraordinary number of stars and may be the densest galaxy near Earth. It is providing astronomers with clues to its...

Densest Galaxy Discovered
2013-09-24 15:58:52

[ Watch the Video: Hubble Locates Densest Galaxy Ever ] Brett Smith for redOrbit.com - Your Universe Online The distance from our sun to the next closest star, Alpha Centauri, is 25.6 trillion miles. While that may seem far, try to imagine 10,000 stars sitting between the two solar systems, meaning the stars would be spaced about the distance from Earth to Pluto. That’s exactly the scenario in M60-UCD1, a recently discovered 'ultra-compact dwarf galaxy' described in a study by a...

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...

Magellanic Stream Origins Discovered By Hubble
2013-08-08 15:15:43

John P. Millis, PhD for redOrbit.com - Your Universe Online Stretching almost halfway around the Milky Way galaxy, the Magellanic Stream is a ribbon of gas that has puzzled astronomers for decades. Now, using data from the Hubble Space Telescope (HST), astronomers now believe that they have nailed down its source. Visible from the southern hemisphere, the dwarf galaxies known as the large and small Magellanic Clouds - the LMC and SMC, respectively - are two of our nearest galactic...

Astronomers Size Up The Smallest Galaxy In The Universe
2013-06-10 11:54:04

Lee Rannals for redOrbit.com - Your Universe Online University of California, Irvine scientists reported on Monday that they have measured the least massive galaxy in the known universe. The researchers wrote in The Astrophysical Journal that the tiny dwarf galaxy, Segue 2, only holds a mere 1,000 stars within its realm. Their findings offer clues about how iron, carbon and other elements help form human life. “Finding a galaxy as tiny as Segue 2 is like discovering an elephant...

Astronomers Observe Galaxy In Act Of Dying
2013-06-03 13:16:28

Lee Rannals for redOrbit.com — Your Universe Online Astronomers announced at the 222nd American Astronomical Society meeting in Indianapolis that they have observed the first clear example of a galaxy in the act of dying. The team says they saw a bright dwarf galaxy relatively close to Earth's Milky Way that was "trailing fireballs." They said until now, there has been no clear example of this transformation happening. “We think we´re witnessing a critical stage in...

Probes Of Dark Matter On Galaxy Scales 2013
2013-04-03 19:01:07

Lee Rannals for redOrbit.com — Your Universe Online Scientists are coming together this summer to try and collaborate on solving the mystery of dark matter. Probes of Dark Matter on Galaxy Scales 2013, will be held July 14—19 in Monterey, California. Scientists at the conference will be meeting to discuss their techniques for solving the secrets of dark matter in the universe. “The idea is to bring together people working on different probes of dark matter from...


Latest Dwarf galaxy Reference Libraries

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_62ac767a66aa75de2afaba1deb05cb8c
2010-09-13 17:05:00

The Local Group, compromising more than 30 galaxies (including dwarf galaxies and the Milky Way), is a group of galaxies with a gravitational center located somewhere between the Milky Way and the Andromeda Galaxy. With a binary (dumbbell) shape and a total mass of (1.29 ± 0.14) × 1012M the Local group covers a 10 million light-year diameter. The local group is part of the Virgo Supercluster. The two largest galaxies in the group are the Milky Way and the Andromeda both Spiral...

45_514eb9ddeca5aebff501a32cd2942949
2010-09-07 17:44:03

Within the Hydra, Centaurus, and Virgo constellations a complex group of galaxies resides called Centaurus A/M83. There are two subgroups within Centaurus A/M83. The first is Cen A, at a distance of 11.9 Million Light Years, is centered around Centaurus A, a close by radio galaxy. The other subgroup, M83, is at a distance of 14.9 Million Light Years and is centered around the Messier 83. Since there are two subgroups Centaurus is sometimes identified as one group and sometimes two, it will be...

45_274ba7ddcce89663fc213d79e864e44b
2010-09-07 17:03:18

The Abell 520 galaxy cluster is an strange structure formed by a major merger. Due to its odd and chaotic nature it has been given the nick-name the Train Wreck Cluster. The Dark Matter within the cluster does not act as expected like it does in other clusters, therefore, Abell 520 creates problems for many of the prevailing theories about Dark Matter. It also disrupts many alternative theories of modified gravity. Similar to the Bullet Cluster the gas contents and galaxies within the...

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