Latest Local Group Stories

Astronomers Rethink Black Hole Growth Rate
2013-02-12 18:38:49

New research published in the Astrophysical Journal suggests black holes are growing at larger rates than what had previously been thought possible.

Seagull Nebula Wings Shown In New ESO Image
2013-02-06 05:10:24

A new image released by the European Space Observatory taken by its Wide Field Imager shows off a section of the Seagull Nebula. The cloud of dust and glowing gas seen in the image that forms the "wings" of the seagull reveals a mix of dark and glowing red clouds.

Spiral Galaxy Messier 106 Has A Secret
2013-02-05 10:47:02

The NASA/ESA Hubble Space Telescope – with a little help from an amateur astronomer – has produced one of the best views yet of nearby spiral galaxy Messier 106.

Lack Of Dwarf Galaxies Around Milky Way Perplexes Physicists
2013-02-01 11:48:09

Scientists at the institute have found that a phenomenon known as “cosmic web stripping” is responsible for the lack of dwarf galaxies near the Milky Way that should be there according to the theory of cold dark matter and dark energy.

Hubble Space Telescope Snaps Image Of Large Magellanic Cloud’s Hidden Treasure
2013-01-17 07:37:54

The Large Magellanic Cloud (LMC), an irregular galaxy that shares some features with spiral galaxies, is known for its array of star-forming regions. One of those regions, LHA 120-N 11 (N11), captured by the Hubble Space Telescope, offers proof that the LMC is producing noticeable signs that stellar nurseries within are still hard at work.

Astronomers Discover Structure 4 Billion Light Years Across - Largest Known In Universe
2013-01-11 13:29:21

Astronomers have reportedly discovered the largest known structure in the universe – a formation so massive it would take a vehicle that was moving at light speed roughly four billion light years to cross it.

Milky Way Star Formation Survey Yields Surprising Results
2013-01-10 09:33:34

A new survey of the Milky Way has uncovered hundreds of previously-unknown regions of massive star formation, including some of the most distant located to date in the galaxy, researchers revealed on Wednesday.

First “Bone” In The Milky Way Discovered At CfA
2013-01-09 11:26:21

Astronomers affiliated with the Harvard-Smithsonian Center for Astrophysics (CfA) have discovered a new "bone" in the structure of the Milky Way – a lengthy tendril comprised of dust and gas.

Starbursts Caught Near The Milky Way's Galactic Center
2013-01-09 10:47:01

Using the airborne telescope on the Stratospheric Observatory for Infrared Astronomy, astronomers have learned that a series of recent starbursts had taken place in the central region of the Milky Way.

Latest Local Group Reference Libraries

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...

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...

2010-09-13 16:59:36

The IC 342/Maffei Group (also known as the IC 342 Group or the Maffei 1 Group) is the closest group of galaxies to the Local Group. The member galaxies are both concentrated around the two brightest galaxies of IC 342 and Maffei 1. The group can therefore be described as a binary group. Along with many others the group is located in the Virgo Supercluster.

2004-10-19 04:45:42

Ring Galaxy -- A subclass of interacting galaxies, ring galaxies, provides a unique laboratory for studying unusually large bursts of non-nuclear star formation. The rings in these systems are often large (10s of kiloparsecs) and contain what appear to be associations of giant H{\small II} regions. As a basis for future modeling of star forming regions in observed ring galaxies we present a series of combined n-body/gas numerical experiments on ring formation and evolution. Three...

2004-10-19 04:45:41

Irregular Galaxy -- In astronomy, a class of galaxy with little structure, which does not conform to any of the standard shapes in the Hubble classification. The two satellite galaxies of the Milky Way, the Magellanic Clouds, are both irregulars. Some galaxies previously classified as irregulars are now known to be normal galaxies distorted by tidal effects or undergoing bursts of star formation (see starburst galaxy). ----- NASA Click here to learn more on this topic from...

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Word of the Day
  • Stoppage; cessation (of labor).
  • A standing still or idling (of mills, factories, etc.).
The word chomage comes into English from French.]