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Latest Local Group Stories

Study Of Massive Stars Shows Milky Way's Missing Arms
2013-12-17 08:54:09

A 12-year study of massive stars has reaffirmed that our Galaxy has four spiral arms, following years of debate sparked by images taken by NASA's Spitzer Space Telescope that only showed two arms.

Milky Way Seen More Clearly Than Ever Thanks To New 3D Map Of The Stars
2013-11-29 04:10:22

The Milky Way galaxy recently got a little easier to understand. A group of astronomers created a new 3D map of the stars that reside in the center of the Milky Way which shows, more clearly than ever, the bulge located at the core of our galaxy.

Fiery Drama Of Star Birth And Stellar Death
2013-11-27 07:05:14

This new image shows clouds of gas and dust where hot new stars are being born and are sculpting their surroundings into odd shapes. But the image also shows the effects of stellar death — filaments created by a supernova explosion.

Ancient Brown Dwarfs
2013-11-21 15:05:41

New research has found the two oldest brown dwarfs in the galaxy, and they have a somewhat unexpected property: they move extremely fast.

Cosmic Deception: One Galaxy Is Actually Two
2013-11-15 03:59:13

The edge-on spiral galaxy UGC 10288 appeared to be a single object in previous observations. However, new detailed radio data revealed that the large perpendicular extension of UGC 10288's halo is really a distant background galaxy with radio jets.

Hubble Reveals First Visual Evidence Of Milky Way's Formative Years
2013-11-14 16:35:20

NASA's Hubble Space Telescope has provided the first visual evidence showing how our home galaxy, the Milky Way, assembled itself into the majestic pinwheel of stars we see today.

Hubble Sees Old And Mysterious Cluster
2013-11-14 12:17:16

The NASA/ESA Hubble Space Telescope has captured the best ever image of the globular cluster Messier 15, a gathering of very old stars that orbits the center of the Milky Way.

earliest galaxy ever found
2013-11-01 14:54:20

Using data from the recently conducted survey of the early universe performed by NASA’s Hubble Space Telescope, an international team led by American astronomers has identified the most distant and earliest galaxy ever detected.

Giant Gas Cloud Magnetic Shield Milky Way
2013-11-01 10:13:00

Astronomers have discovered a magnetic field deep within the Smith Cloud’s interior that may protect the giant galactic streamer of hydrogen gas during its projected collision with the Milky Way galaxy.


Latest Local Group Reference Libraries

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_62ac767a66aa75de2afaba1deb05cb8c
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...

0_0c560ad0ccf4d719031a7916437450a5
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.

6_11b0e50afd172f6a61aeda24e25504702
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...

6_d430450f9e0cfd67807619c4bc1fbdf32
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
overword
  • To say in too many words; to express verbosely.
  • To express in too many words: sometimes used reflexively.
  • The leading idea or a repeated phrase, as of a song or ballad; the refrain; burden.
The word 'overword' comes from over- +‎ word.