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Latest Interacting galaxy Stories

Clumpy Structure Makes Disk Galaxies Look Alike Over Time
2013-09-12 06:49:36

redOrbit Staff & Wire Reports - Your Universe Online Researchers at Iowa State University and IBM have identified why virtually all disk galaxies grow out of their irregular, clumped appearance, and why their older stars acquire the same smooth look as they fade from a bright center to a faint edge. The astronomers say that whether these young disk galaxies are big, small, isolated or crowded in a cluster, the reason they all eventually look alike is due to their clumpy structure,...

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

Lee Rannals for redOrbit.com — Your Universe Online The rapidly expanding problem of obesity doesn't seem to just be limited to here on Earth, because new research published in the Astrophysical Journal suggests black holes are growing at larger rates than what had previously been thought possible Most galaxies have black holes at the center of them that can weigh anywhere from one million to one billion times as much as the Sun. The black hole found in the middle of our Milky...

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...

Galactic Collisions Between Big Galaxies Form Even Bigger Galaxies
2012-10-12 14:36:09

Brett Smith for redOrbit.com - Your Universe Online When massive galaxies belly-up to the interstellar buffet, their centers expand as they gobble up other galaxies that contain billions and billions of stars, according to a new report from University of Utah astronomers. "We found that during the last 6 billion years, the matter that makes up massive elliptical galaxies is getting more concentrated toward the centers of those galaxies. This is evidence that big galaxies are crashing...

Milky Way Destined For Head-On Collision
2012-06-05 03:18:55

[ Watch the Video ] NASA astronomers announced on May 31 that they can now predict with certainty the next major cosmic event to affect our galaxy, sun, and solar system: the titanic collision of our Milky Way galaxy with the neighboring Andromeda galaxy. The Milky Way is destined to get a major makeover during the encounter, which is predicted to happen four billion years from now. It is likely the sun will be flung into a new region of our galaxy, but our Earth and solar system are in...

Image 1 - GOODS-Herschel Reveals Gas Mass Role In Creating Fireworks Versus Beacons Of Star Formation
2012-03-27 09:24:29

A study of galaxies in the deepest far-infrared image of the sky, obtained by the Herschel Space Observatory, highlights the two contrasting ways that stars formed in galaxies up to 12 billion years ago. Dr Georgios Magdis will present the results at the National Astronomy Meeting in Manchester. Recent results from Herschel show that gas-rich galaxies in the early universe were able to create stars at an intense rate. In the nearby universe, we only see such high rates of star formation...

Image 1 - Astronomers Confirm Collision Rate Of Galaxies
2011-10-27 12:37:37

[ Watch the Video ] Astronomers have confirmed that the collision rate of galaxies over the last 8 to 9 billion years falls between the previous estimates. NASA said the galaxy merger rate is one of the fundamental measures of galaxy evolution.  However, there has been a discrepancy in the scientific community about how often galaxies collided in the past. The study analyzed galaxy interactions at different distances, allowing the astronomers to compare mergers over time. The...

Beware Of The Wildlife, Even In Apparently Quiet Galaxies
2011-09-16 07:55:19

  Even though a dwarf galaxy clear across the Milky Way looks to be a mouse, it may have once been a bear that slashed through the Milky Way and created the galaxy's spiral arms, writes an Iowa State University astronomer in the journal Nature. Curtis Struck, an Iowa State professor of physics and astronomy, uses a News & Views commentary in the Sept. 15 issue of Nature to add context and color to a study published in the same issue by a research team led by Chris W. Purcell of...

Image 1 - Collisions Not Needed For Star Formation
2011-09-13 09:46:39

  ESA's Herschel infrared space observatory has discovered that galaxies do not need to collide with each other to drive vigorous star birth. The finding overturns this long-held assumption and paints a more stately picture of how galaxies evolve. The conclusion is based on Herschel's observations of two patches of sky, each about a third of the size of the full Moon. It's like looking through a keyhole across the Universe — Herschel has seen more than a thousand galaxies...


Latest Interacting galaxy Reference Libraries

3_58ff37da55cb04f6a1661bcab5adea542
2004-10-19 04:45:40

Seyfert's Sextet -- Seyfert's Sextet is a group of galaxies in which gravitational forces are exerted between its members. The galaxies are so tightly packed together that gravitational forces are beginning to rip stars from them and distort their shapes. Those same gravitational forces eventually could bring the galaxies together to form one large galaxy. The name of this grouping, Seyfert's Sextet, implies that six galaxies are participating in the action. But only four galaxies are...

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