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Last updated on April 16, 2014 at 1:21 EDT
How Do Black Holes Become So Massive

How Do Black Holes Become So Massive?

Megan Fellman, Northwestern University Gas cloud’s fate could reveal information on growth of supermassive black holes Right now a doomed gas cloud is edging ever closer to the supermassive black hole at the center of our Milky Way galaxy....

Latest Sagittarius constellation Stories

Swift Sees X-ray Action In Milky Way's Center
2014-01-09 06:14:19

[ Watch the Video: Swift Sees Changes in the Milky Way 2006 – 2013 ] Lee Rannals for redOrbit.com - Your Universe Online Scientists have discovered a rare celestial entity that could help test predictions of Albert Einstein’s theory of general relativity. A team at the annual meeting of the American Astronomical Society in National Harbor, Maryland, explained how images obtained through NASA’s Swift spacecraft could help decipher the physical nature of X-ray flares and enable...

2014-01-08 12:21:31

WASHINGTON, Jan. 8, 2014 /PRNewswire-USNewswire/ -- Recent observations by NASA's Swift spacecraft have provided scientists a unique glimpse into the activity at the center of our galaxy and led to the discovery of a rare celestial entity that may help them test predictions of Albert Einstein's theory of general relativity. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) This week, at the annual meeting of the American Astronomical Society in National Harbor, Md.,...

Milky Way's Black Hole Shows Off It's Jet Of High-Energy Particles
2013-11-21 10:21:13

Brett Smith for redOrbit.com - Your Universe Online Many supermassive black holes emit a jet of high-energy particles as a byproduct of engulfing large quantities of mass and energy, and NASA researchers have just discovered that the supermassive black hole at the center of the Milky Way is no different. Using observations from NASA's Chandra X-ray Observatory and the National Science Foundation's Very Large Array (VLA) radio telescope, a team of Chinese and American astrophysicists...

2013-11-20 16:20:42

WASHINGTON, Nov. 20, 2013 /PRNewswire-USNewswire/ -- Astronomers have long sought strong evidence that Sagittarius A* (Sgr A*), the supermassive black hole at the center of the Milky Way, is producing a jet of high-energy particles. Finally they have found it, in new results from NASA's Chandra X-ray Observatory and the National Science Foundation's Very Large Array (VLA) radio telescope. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) Previous studies, using a...

Light Echoes From The Black Hole At The Heart Of The Milky Way
2013-10-25 05:25:40

[ Watch the Video: Time-Lapse of Supermassive Black Hole Sagittarius A* ] April Flowers for redOrbit.com - Your Universe Online During the last few hundred years, the dim region very close to the supermassive black hole near the center of the Milky Way has flared up with at least two luminous outbursts, according to a team of researchers using NASA's Chandra X-ray Observatory. A new study of rapid variations in the X-ray emissions from gas clouds surrounding Sagittarius A* (Sgr A*) -...

Sleeping Supermassive Black Holes Can Have Periods Of Intense Flare-Ups
2013-09-24 14:01:00

[ Watch the Video: Intense Flare-Ups In Supermassive Black Holes ] Brett Smith for redOrbit.com - Your Universe Online Around 2 million years ago, the supermassive black hole at the center of our galaxy erupted in a blaze of glory big enough to leave a residual glow that can still be seen today, according to an upcoming paper to be published in The Astrophysical Journal. The astronomers who conducted the study said their findings support the theory that black holes can ‘awaken from...

Researchers Explain Why Supermassive Black Holes Eat Less Material Than Expected
2013-08-30 08:51:11

[ Watch the Video: Black Hole On A Diet ] April Flowers for redOrbit.com - Your Universe Online A long-standing mystery concerning supermassive black holes (SMBH) at the center of galaxies has been solved by a team of astronomers using NASA’s super-sensitive Chandra X-ray Space Telescope. The team, led by Q. Daniel Wang at the University of Massachusetts Amherst, investigated why these SMBHs have such a low accretion rate, or rather, why they swallow very little of the cosmic gases...

2013-08-29 16:20:15

WASHINGTON, Aug. 29, 2013 /PRNewswire-USNewswire/ -- Astronomers using NASA's Chandra X-ray Observatory have taken a major step in explaining why material around the giant black hole at the center of the Milky Way Galaxy is extraordinarily faint in X-rays. This discovery holds important implications for understanding black holes. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) New Chandra images of Sagittarius A* (Sgr A*), which is located about 26,000 light-years from...

Sagittarius A Black Hole To Devour Hot Molecular Gas
2013-05-07 12:42:37

Lee Rannals for redOrbit.com - Your Universe Online The European Space Agency's (ESA) Herschel spacecraft has revealed that the supermassive black hole in the center of our galaxy is about to get a taste of some hot molecular gas. Sagittarius A has a mass of about four million times that of our Sun and sits about 26,000 light-years away from us. It is a few hundred times closer to us than any other galaxy with an active black hole at its center, making it ideal for studying these...

Danish Telescope Captures Breathtaking Image Of Star-Forming Region
2013-05-02 13:53:56

WATCH VIDEOS: [Panning Across NGC 6559] | [Zooming In On NGC 6559] John P. Millis, Ph.D. for redOrbit.com - Your Universe Online The Danish 1.54-metre telescope located at ESO´s La Silla Observatory in Chile has released a new image of the star-forming region NGC 6559. Located relatively nearby, a mere 5000 light-years from Earth, NGC 6559 is found in the constellation of Sagittarius (The Archer). The nebula is only a few light years across, a stark contrast to its more...


Latest Sagittarius constellation Reference Libraries

3_4c0ec7241f8e27839ce2ccdd20c003cf2
2004-10-19 04:45:40

Trifid Nebula -- Discovered by Charles Messier in 1764. Charles Messier discovered this object on June 5, 1764, and described it as a cluster of stars of 8th to 9th magnitude, enveloped in nebulosity. The Trifid Nebula M20 is famous for its three-lobed appearance. This may have caused William Herschel, who normally carefully avoided to number Messier's objects in his catalog, to assign four different numbers to parts of this nebula: H IV.41 (cataloged May 26, 1786) and H V.10, H V.11,...

3_bcd2ee1fae95b3d205bd2364844daa062
2004-10-19 04:45:40

Lagoon Nebula -- The Lagoon Nebula was discovered by Le Gentil in 1747. As often for diffuse nebulae, the cluster of young stars which has formed from the nebula's material was discovered first. In this case the young open cluster NGC 6530 in the Eastern half of M8 was discovered by Flamsteed about 1680, and again seen by De Ch'seaux in 1746, before Le Gentil found the nebula in 1747. Abbe Nicholas Louis de la Caille has cataloged it in his 1751-52 compilation as Lacaille III.14....

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