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Massive Black Holes May Be Able To Halt New Star Formation

Massive Black Holes May Be Able To Halt New Star Formation

April Flowers for redOrbit.com - Your Universe Online A new study has found that massive black holes which emit radio-frequency-emitting particles at near-light speed may possibly be able to block the formation of new stars in older galaxies....

Latest Galaxy Stories

2014-10-21 23:05:29

Pamela Fleming, Executive Vice President, The Institute for Basic Research, Florida, announces that "The recently observed 'Red Moon' establishes the lack of expansion of the universe because the Moon sees Sunlight redshifted while passing through Earth's atmosphere without relative motion. This is evidence that, light reaching us from galaxies is redshifted without the expansion of the universe due to the replacement of Earth's atmosphere with intergalactic...

2014-10-16 16:20:41

WASHINGTON, Oct. 16, 2014 /PRNewswire-USNewswire/ -- Peering through a giant cosmic magnifying glass, NASA's Hubble Space Telescope has spotted a tiny, faint galaxy -- one of the farthest galaxies ever seen. The diminutive object is estimated to be more than 13 billion light-years away. http://photos.prnewswire.com/prnvar/20081007/38461LOGO This galaxy offers a peek back to the very early formative years of the universe and may just be the tip of the iceberg. "This galaxy is an...

big bang universe
2014-10-11 06:14:12

Chuck Bednar for redOrbit.com - Your Universe Online By measuring the radiation leaks in a large, densely-packed star-forming galaxy, astronomers have been able to learn more about how the universe evolved as the first stars were formed, according to research published online Thursday in the journal Science. Lead author Sanchayeeta Borthakur, an assistant research scientist at Johns Hopkins University, and her colleagues reported how they used a method of analyzing star-forming galaxies...

milky way dark matter
2014-10-10 04:30:30

Brett Smith for redOrbit.com - Your Universe Online A team of Australian astrophysicists has determined that the Milky Way has half as much dark matter as previously thought, according to a new study published in the Astrophysical Journal. Dark matter is a mysterious invisible substance that has profound gravitational effect throughout the universe. The researchers found that the amount of dark matter in our galaxy is 800,000,000,000 times the mass of the Sun. To reach their...

deceptive galaxy
2014-09-26 08:31:51

Georgia Bladon, Hubble/ESA Astronomers usually have to peer very far into the distance to see back in time, and view the Universe as it was when it was young. This new NASA/ESA Hubble Space Telescope image of galaxy DDO 68, otherwise known as UGC 5340, was thought to offer an exception. This ragged collection of stars and gas clouds looks at first glance like a recently-formed galaxy in our own cosmic neighborhood. But, is it really as young as it looks? Astronomers have studied...

andromeda galaxy
2014-09-20 05:19:03

Chuck Bednar for redOrbit.com - Your Universe Online When galaxies grow too massive to continue making their own stars, they begin cannibalizing other nearby galaxies, experts from the University of Western Australia and an international team of colleagues reported this week in the journal Monthly Notices of the Royal Astronomical Society. Dr. Aaron Robotham, a postdoctoral researcher at the University of Western Australia node of the International Centre for Radio Astronomy Research...

2014-09-17 08:36:37

MIAMI BEACH, Fla., Sept. 17, 2014 /PRNewswire/ -- Next Galaxy Corp. (OTCQB: NXGA), a leading developer of innovative content solutions and fully immersive Consumer Virtual Reality technology, is proud to announce that Ron Diaz, the President of iDiaz Entertainment, has joined the Company's management team to head Next Galaxy's Strategic Partnerships & Business Development in Latin America, with the responsibility of producing events and concerts for the company's Ceek platform...

fishing for galaxies
2014-09-10 07:27:54

Whitney Clavin, NASA Jet Propulsion Laboratory A new survey of galaxies by NASA's Spitzer Space Telescope is taking a plunge into the deep and uncharted waters of our cosmos. In one of the longest surveys the telescope will have ever performed, astronomers have begun a three-month expedition trawling for faint galaxies billions of light-years away. The results are already yielding surprises. "If you think of our survey as fishing for galaxies in the cosmic sea, then we are finding...

distribution of dark matter
2014-09-09 11:12:54

Leighton Kitson, Durham University Scientists believe they have found a way to explain why there are not as many galaxies orbiting the Milky Way as expected. Computer simulations of the formation of our galaxy suggest that there should be many more, smaller galaxies around the Milky Way than are observed through telescopes. This has thrown doubt on the generally accepted theory of cold dark matter, a substance that scientists predict should allow for more galaxy formation around the...

Laniakea Supercluster
2014-09-04 04:40:37

Chuck Bednar for redOrbit.com - Your Universe Online Using a new mapping technique that takes into account the motions of nearby galaxies, and not just their distances, researchers from the University of Hawaii have discovered that the Milky Way resides on the outer edge of a massive, previously undetected supercluster of galaxies that they have dubbed Laniakea. Laniakea, a moniker created from the words meaning “immeasurable heaven” in Hawaiian, spans 520 million light-years in...


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
negawatt
  • A unit of saved energy.
Coined by Amory Lovins, chairman of the Rocky Mountain Institute as a contraction of negative watt on the model of similar compounds like megawatt.