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Latest Atlas of Peculiar Galaxies Stories

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

Lee Rannals for redorbit.com — Your Universe Online New images taken by the Hubble Space Telescope of a pair of galaxies experiencing a close encounter have been released. The new image features interacting galaxies known as Arp 142. These galaxies have strayed a little too close to each other, causing them to interact and create big changes in both objects. Astronomers say the two galaxies are interacting violently by exchanging matter and causing havoc. Arp 142 was named...

Halo Clouds Spotted Around Colliding Galaxies
2013-05-01 05:19:26

April Flowers for redOrbit.com - Your Universe Online A detailed study of an enormous cloud of hot gas that envelops two large, colliding galaxies has been made using NASA´s Chandra X-ray Observatory. This oversized gas reservoir contains as much mass as 10 billion Suns, is 300,000 light years across, and radiates more than 7 million degrees Kelvin. Scientists call this sort of cloud a “halo.” This particular halo is located in the system designated NGC 6240, which...

How Spiral Galaxies Get Their Arms
2013-04-03 12:32:19

Lee Rannals for redOrbit.com - Your Universe Online Astronomers writing in The Astrophysical Journal have answered a few more important questions about how so-called spiral galaxies get their arms. The team used powerful computer simulations to follow the motions of as many as 100 million "stellar particles" as gravity and other astrophysical forces began to give them shape. Their simulations have answered some long-standing questions about the origin and life history of spiral arms in...

Fading Supernova Seen In Lopsided Spiral Galaxy
2013-03-20 06:04:32

Lee Rannals for redOrbit.com - Your Universe Online Astronomers studying a violent explosion located 35 million light-years away from Earth in spiral galaxy NGC 1637 have provided a new view of the cosmic beauty. The team used the European Space Observatory's Very Large Telescope (VLT) at the Paranal Observatory in Chile to provide the new image. Scientists first reported the discovery of the supernova SN 1999em in the spiral galaxy NGC 1637 back in 1999. SN1999em was discovered by...

Spiral Galaxy Is The Largest Ever Measured
2013-01-11 11:38:51

redOrbit Staff & Wire Reports - Your Universe Online While searching for data looking for star-forming regions around a galaxy located more than 200 million light years away, researchers have accidentally discovered that it is, in fact, the largest known spiral galaxy in the entire universe. As reported Friday by BBC News reporter Jason Palmer, a research assistant from NASA´s Goddard Space Flight Center and colleagues from the Catholic University of America (CUA), the...

Hubble Images Rare Spiral Galaxy With An Unusual Form
2012-12-06 09:19:14

[ Video 1 ] | [ Video 2 ] | [ Video 3 ] Lee Rannals for redOrbit.com - Your Universe Online A new Hubble Space Telescope image has been unveiled of NGC 922, revealing the cosmic structure to be an unusual spiral galaxy. The ring structure and distorted spiral shape of NGC 922 was imaged with NASA's Chandra X-ray Observatory to reveal even more chaos in the form of ultra luminous X-ray sources. The galaxy's unusual form is due to a cosmic bulls eye millions of years ago. A smaller...

Gemini Observatory Catches Rare Glimpse Of Polar Ring Galaxy
2012-10-19 12:30:26

April Flowers for redOrbit.com - Your Universe Online Many images that we see from the space observatories are beautiful. Swirling colors and bright galaxies make for amazing images. But an image just released from the ground-based Gemini Observatory of the polar-ring galaxy NGC 660 might be the most hauntingly beautiful image ever. Add in the back story of a colorful and dramatic tale of two galaxies locked in a life-and-death struggle, and the picture becomes poetry in motion. All...

Galaxy Pair Imaged By Hubble
2012-09-06 08:18:33

Lee Rannals for redOrbit.com - Your Universe Online The Hubble Space Telescope has taken a portrait of two different galaxies forming a peculiar galaxy pair called Arp 116. The image released today shows the dramatic differences in size, structure and color between spiral and elliptical galaxies. Arp 116 is made up of a typical elliptical galaxy known as Messier 60, and a smaller spiral galaxy called NGC 4647. Messier 60 is a typical elliptical galaxy, but together with its...


Latest Atlas of Peculiar Galaxies Reference Libraries

67_f506006076d9ad389453c46877f5932f
2010-09-13 16:27:55

Stephan's Quintet in the constellation Pegasus is a visual grouping of five galaxies which four form the first compact galaxy group ever discovered. The group was discovered by Édouard Stephan in 1877 at Marseilles Observatory and is the most studied of all the compact galaxy groups. NGC 7320, which has extensive H II regions, is the brightest member of the visual grouping and is where active star formation is occurring. Hickson Compact Group 92, which contains four of the five...

67_1428b890dead44097824b7298e978b1a
2010-09-08 16:15:14

Robert's Quartet is four different galaxies in the process of colliding and merging. The galaxies reside in the Phoenix constellation approximately 160 million light-years away. Its members are NGC 87, NGC 88, NGC 89 and NGC 92, discovered by John Herschel in the 1830s. The quartet is one of the best examples of compact groups of galaxies. Since such groups contain four to eight galaxies in a very small area, they provide great laboratories for the study of galactic interactions and their...

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...

6_3e166ea744352dc86330d77d6feb4abd2
2004-10-19 04:45:41

Active Galaxy -- An active galaxy is a galaxy where a significant fraction of the energy output is not emitted from normal stellar populations or interstellar gas. This energy, depending on the active galaxy type, can be emitted across most of the electromagnetic spectrum, as infrared, radio waves, UV, X-ray and gamma rays. Frequently, the abbreviation AGN (Active Galactic Nuclei) is used, since most of the active galaxies emit most of their radiation from a narrow region in their...

3_a9c9fe62632bd80b057ff6ff947b69d62
2004-10-19 04:45:40

Whirlpool Galaxy -- Discovered 1773 by Charles Messier. The famous Whirlpool galaxy M51 was one of Charles Messier's original discoveries: He discovered it on October 13, 1773, when observing a comet, and described it as a "very faint nebula, without stars" which is difficult to see. Its companion, NGC 5195, was discovered in 1781 by his friend, Pierre Mchain, so that it is mentioned in Messier's 1784 catalog: `It is double, each has a bright center, which are separated 4'35". The two...

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Word of the Day
endocarp
  • The hard inner (usually woody) layer of the pericarp of some fruits (as peaches or plums or cherries or olives) that contains the seed.
This word comes from the Greek 'endon,' in, within, plus the Greek 'kardia,' heart.
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