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Search results for disk galaxies
Iconic rings and flares of galaxies created by violent, intergalactic collisions
Nov 21, 2008 |
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The bright pinwheels and broad star sweeps iconic of disk galaxies such as the Milky Way might all be the shrapnel from massive, violent collisions with other galaxies and galaxy-size chunks of dark matter, according to a ...
Why Are Galaxies without Black Holes Uncommon?
May 30, 2007 |
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Recent calculations indicate that when two galaxies, and the supermassive black holes that lie at their centers, merge, these galactic 'marriages' frequently produce gravitational forces strong enough to kick the new combined ...
Hubble Illuminates Cluster of Diverse Galaxies
Feb 06, 2007 |
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This image from NASA's Hubble Space Telescope shows the diverse collection of galaxies in the cluster Abell S0740 that is over 450 million light-years away in the direction of the constellation Centaurus.
Is the Milky Way doomed to be destroyed by galactic bombardment? Probably not
Aug 31, 2009 |
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(PhysOrg.com) -- As scientists attempt to learn more about how galaxies evolve, an open question has been whether collisions with our dwarf galactic neighbors will one day tear apart the disk of the Milky ...
A 3-D view of remote galaxies
Mar 10, 2009 |
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For decades, distant galaxies that emitted their light six billion years ago were no more than small specks of light on the sky. With the launch of the Hubble Space Telescope in the early 1990s, astronomers ...
Dark Matter in a Galaxy
Oct 30, 2009 |
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(PhysOrg.com) -- Stars, the most familiar objects in the night sky, make up only a tiny percentage of the total amount of matter in the universe -- about 2%.
Invisible matters: How dwarf galaxies may lose their light
Oct 02, 2009 |
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(PhysOrg.com) -- A new study seeking to answer the question of why some galaxies are extremely dark compared with others may eventually help to explain the formation of all galaxies, according to researchers ...
Hubble Sees Galaxy on Edge
Jun 08, 2006 |
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This is a unique NASA Hubble Space Telescope view of the disk galaxy NGC 5866 tilted nearly edge-on to our line-of-sight.
Astronomers Describe New Evidence of 'Inconvenient' Galaxy
Jan 08, 2008 |
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Discovery of two new components within a puzzling spiral galaxy confirm it must have a pair of arms winding in the opposite direction from most galaxies, according to results being presented today to the American ...
New understanding of the origin of galaxies
Jan 21, 2009 |
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A new theory as to how galaxies were formed in the Universe billions of years ago has been formulated by Hebrew University of Jerusalem cosmologists. The theory takes issue with the prevailing view on how ...
Caltech astronomers describe the bar scene at the beginning of the universe
Jul 29, 2008 |
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Bars abound in spiral galaxies today, but this was not always the case. A group of 16 astronomers, led by Kartik Sheth of NASA's Spitzer Science Center at the California Institute of Technology, has found that bars tripled ...
Infrared Image of Circumstellar Disk Illuminates Massive Star Formation Process
Nov 24, 2009 |
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(PhysOrg.com) -- A team of astronomers from Ibaraki University, Japan Aerospace Exploration Agency, Kanagawa University, University of Tokyo, Academica Sinica, and National Astronomical Observatory of Japan ...
Slow motion mergers in galaxy clusters provide conditions to transform spirals to smooth disks
Apr 05, 2006 |
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Astronomers at Liverpool John Moores University may have solved the mystery of how spiral galaxies in clusters are transformed over time into smooth disks. Results from a study of galaxy clusters confirms that ...
Immigrant Sun: Our star could be far from where it started in Milky Way
Sep 15, 2008 |
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A long-standing scientific belief holds that stars tend to hang out in the same general part of a galaxy where they originally formed. Some astrophysicists have recently questioned whether that is true, and ...
Gas 'finger' points to galaxies' future
Feb 04, 2008 |
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Like a fork piercing a fried egg, a giant finger of hydrogen gas is poking through our Milky Way Galaxy from outside, astronomers using CSIRO radio telescopes at Parkes and Narrabri have found.
