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Latest Galaxy Stories

How Does Hydrogen Drive Star Formation In Galaxies
2013-06-13 05:00:58

John P. Millis, Ph.D. for redOrbit.com — Your Universe Online A major field of study in astronomy seeks to understand how galaxies form and evolve. One advantage that we possess is that as we study the light from the most distant galaxies, we are effectively looking back in time, seeing the oldest galaxies in the Universe when they were still young. But there is a problem: the farther away the galaxies are, the more difficult they are to study. This is the issue faced by...

More Galactic Gas In Milky Way Than We Thought
2013-06-11 14:31:02

Brett Smith for redOrbit.com - Your Universe Online The building blocks of stars, clouds of molecular gases, are strewn across the Milky Way, and a new survey from the European Space Agency (ESA) and NASA has found that scientists have been underestimating the amount of gas in the galaxy by about one-third. According to a new report in journal Astronomy and Astrophysics, the discovery was made possible by the orbiting Hershel Space Observatory, a joint venture between the two space...

Euclid Dark Matter Mission Now In Development
2013-06-11 13:13:58

Lee Rannals for redOrbit.com — Your Universe Online The European Space Agency's (ESA's) Euclid module under development in France will be helping to explore dark energy and dark matter in the universe. Euclid will be launching in 2020 to help scientists better understand the evolution of the Universe since the Big Bang and its present accelerating expansion. Dark matter is invisible to normal telescopes, making it hard to study. However, the elusive subject plays a vital role in...

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...

Cats Paw Nebula Baby Boom
2013-06-06 13:58:02

Lee Rannals for redOrbit.com - Your Universe Online Astronomers presented research on Wednesday at the American Astronomical Society (AAS) about how the Cat's Paw Nebula is experiencing a "baby boom." The team said the nebula, or NGC 6334, is forming stars at a more rapid pace than the Orion Nebula, which is one of the closest stellar nurseries to Earth. "It might resemble a 'mini-starburst,' similar to a scaled-down version of the spectacular bursts sometimes seen in other...

Spitzer Finds New Stars At Edge Of Milky Way
2013-06-06 09:48:09

April Flowers for redOrbit.com - Your Universe Online New images from NASA´s Spitzer Space Telescope reveal blooming stars at the fringe of the Milky Way galaxy, far from its crowded core. The images were collected as part of the Galactic Legacy Infrared Mid-Plane Survey Extraordinaire (Glimpse 360) project. Glimpse 360 is mapping the celestial topography of our galaxy and will make the map and a full 360-degree view of the Milky Way plane that will be available later this year....

2013-06-05 16:20:16

WASHINGTON, June 5, 2013 /PRNewswire-USNewswire/ -- New views from NASA's Spitzer Space Telescope show blooming stars in our Milky Way galaxy's more barren territories, far from its crowded core. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) The images are part of the Galactic Legacy Infrared Mid-Plane Survey Extraordinaire (Glimpse 360) project, which is mapping the celestial topography of our galaxy. The map and a full, 360-degree view of the Milky Way plane will be...

NGC 6334: Shedding Light On Starburst Regions
2013-06-05 13:00:40

John P. Millis, Ph.D. for redOrbit.com — Your Universe Online Stars are formed in massive clouds of gas that are being compressed by some nearby event. Over time, the region will be consumed by the forming stars, leaving a cluster that will eventually drift apart. But what starts this process in the first place? Often these regions of star formations -- known as starburst regions -- are found in distant galaxies where the activity level is very high. But this presents a problem:...

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...

Galaxies Discovered Buried In Dust
2013-06-01 05:33:58

redOrbit Staff & Wire Reports - Your Universe Online Approximately 80 percent of all unidentifiable millimeter wave signals emitted in the universe actually originate from galaxies, according to new research published in Saturday´s edition of the Astrophysical Journal Letters. Based on observations collected using Atacama Large Millimeter/sub-millimeter Array (ALMA) telescopes, professor Kouji Ohta and postdoctoral researcher Bunyo Hatsukade of Kyoto University in Japan and...


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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