Latest Extragalactic astronomy Stories

Milky Way Black Hole Rips Apart Gas Cloud
2013-07-17 10:54:47

The European Southern Observatory's Very Large Telescope has helped astronomers catch a supermassive black hole ripping apart a gas cloud for the first time.

Aircraft Telescope Images Ring Of Dust Surrounding Black Hole
2013-07-10 13:34:10

Astronomers using a telescope attached to a modified Boeing 747SP aircraft have captured new images of a ring of gas and dust seven light-years in diameter surrounding the supermassive black hole at the center of the Milky Way.

Astronomers Catch Distant Galaxy Snacking On Gas
2013-07-04 13:01:16

Astronomers were able to catch a distant galaxy in the act of snacking on nearby gas while using the European Space Observatory's Very Large Telescope.

Spiral Galaxies Larger Than Thought
2013-06-27 13:50:10

Astronomers now say spiral galaxies like the Milky Way galaxy are actually larger than previously thought.

Mapping The Skies In 3D Gets Help From University Of Colorado
2013-06-26 13:16:46

The University of Colorado has announced becoming a full partner of the Sloan Digital Sky Survey-IV, looking to help in efforts to map the entire sky in three dimensions.

New Hubble Image Shows Interacting Galaxies
2013-06-20 18:59:33

New images taken by the Hubble Space Telescope of a pair of galaxies experiencing a close encounter have been released.

Black Hole Count Keeps Growing For The Andromeda Galaxy
2013-06-13 06:10:47

Astronomers have discovered an unprecedented number of black holes in the Andromeda Galaxy (M31), one of the Milky Way’s nearest cosmic neighbors, using data from NASA’s Chandra X-ray Observatory.

NuSTAR Observes Dormant Black Hole In Nearby Sculptor Galaxy
2013-06-12 08:35:23

NASA’s Chandra X-ray Observatory caught signs of what appeared to be a black hole eating gas at the middle of the nearby Sculptor galaxy nearly a decade ago. A new observation by NASA’s Nuclear Spectroscopic Telescope Array (NuSTAR) has found the black hole asleep.

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

University of California, Irvine scientists reported on Monday that they have measured the least massive galaxy in the known universe.

Latest Extragalactic astronomy Reference Libraries

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 15:00:46

The NGC 5866, located in the Draco constellation, is named after the galaxy with the highest magnitude however some catalogs list NGC 5907 as the brightest member. The M51 Group and the M101 Group are NGC 5866 closest neighbor. The distances between these groups are similar which suggest the three groups are part of a single large, loose, elongated group. However, most identification methods consider them separate.

2010-09-13 17:13:25

The M101 Group, one of many in the Virgo Supercluster, is located in Ursa Major and named after the brightest galaxy in the group, the Pinwheel Galaxy (M101). The group is composed mostly of members that are companions of the Pinwheel Galaxy. The M51 Group and the NGC 5866 Group are M101's closest neighbor. The distances between these groups are similar which suggest the three groups are part of a single large, loose, elongated group. However, most identification methods consider them...

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...

2010-09-13 17:07:12

The M51 Group, located in Canes Venatici, is named after the brightest galaxy in the group, the Whirlpool Galaxy (M51A). The few other notable members include the companion galaxy to the Whirlpool Galaxy (M51B) and the Sunflower Galaxy (M63).

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Word of the Day
  • Sleep; the state or condition of being asleep.
  • The state or condition of numbness of a part due to pressure on a nerve: as, the obdormition of a limb.
The word 'obdormition' comes from a Latin word meaning "to fall asleep".