Latest Local Group Stories

NASA's Swift Team Collects More Than 100 Snapshots For Image Gallery Gift
2012-12-31 10:31:00

Of the three telescopes carried by NASA's Swift satellite, only one captures cosmic light at energies similar to those seen by the human eye.

Stellar Patrons Of The Milky Way Bar Identified By Astronomers
2012-12-19 15:03:31

Forget the restaurant at the end of the Universe — astronomers now have the clearest understanding yet of the bar at the center of the Milky Way.

Astronomers Need Your Help Looking For Space Anomalies
2012-12-19 13:55:27

Astronomers are reaching out to the public and asking for a little help in a study to find holes in dust clouds.

Microquasar Found In Distant Galaxy
2012-12-12 13:35:22

Astronomers have found a microquasar in a galaxy far away for the first time, according to a report in the journal Nature.

Spotting Distant Galaxy Clusters With WISE
2012-12-07 05:33:49

As grand and colorful as it is, our solar system is a fleck in the grander cosmos. Our Milky Way galaxy has hundreds of billions of solar systems, yet it is only just a drop in the sea of galaxies.

Andromeda Project Wants Your Help Searching For Star Clusters
2012-12-05 13:08:22

A new project, named The Andromeda Project, is asking the public's help to search through Hubble Space Telescope images to identify star clusters and increase our understanding of how galaxies evolve.

Astronomers Take Starburst Galaxy Census
2012-12-04 13:02:44

Astronomers have taken a census of hundreds of previously unseen starburst galaxies, revealing high star-formation rates across the Universe.

Hubble Image Shows Hercules A
2012-11-29 14:26:18

A new Hubble Space Telescope image released today shows off a multi-wavelength view of radio galaxy Hercules A.

Massive Black Hole Is A Real Heavyweight
2012-11-29 06:42:37

Astronomers have measured the mass of what may be the most massive black hole observed so far by using the Hobby-Eberly Telescope at The University of Texas at Austin's McDonald Observatory.

Thanksgiving Dinner At The Center Of The Galaxy
2012-11-22 10:33:45

NASA's NuSTAR spacecraft has detected the Milky Way's central black hole eating a Thanksgiving snack. Supermassive black holes like the one in the middle of our galaxy sustain themselves by swallowing stars, planets, asteroids, comets and clouds of gas that wander around the galaxy.

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
  • a meat pie that is usually eaten at Christmas in Quebec
The word 'tourtiere' comes from the French tourte, or passenger pigeon.