News tagged with star clusters

Alien invaders pack the Milky Way

(PhysOrg.com) -- Around a quarter of the globular star clusters in our Milky Way are invaders from other galaxies, new research from Swinburne University of Technology (Australia) shows.

Feb 23, 2010
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Vampires and collisions rejuvenate stars

Stars in globular clusters are generally extremely old, with ages of 12-13 billion years. However, a small fraction of them appear to be significantly younger than the average population and, because they ...

Dec 23, 2009
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Opening up a colorful cosmic jewel box

(PhysOrg.com) -- Star clusters are among the most visually alluring and astrophysically fascinating objects in the sky. One of the most spectacular nestles deep in the southern skies near the Southern Cross ...

Oct 29, 2009
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Sky merger yields sparkling dividends

(PhysOrg.com) -- Not surprisingly, interacting galaxies have a dramatic effect on each other. Studies have revealed that as galaxies approach one another massive amounts of gas are pulled from each galaxy ...

Oct 13, 2009
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An Eagle of Cosmic Proportions

(PhysOrg.com) -- Today ESO has released a new and stunning image of the sky around the Eagle Nebula, a stellar nursery where infant star clusters carve out monster columns of dust and gas.

Jul 16, 2009
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Giant galaxy Messier 87 finally sized up

The new observations reveal that Messier 87's halo of stars has been cut short, with a diameter of about a million light-years, significantly smaller than expected, despite being about three times the extent ...

May 20, 2009
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Oddball stars discovered in new Hubble images

(PhysOrg.com) -- Professor Adrienne Cool has discovered 24 unusual stars in an ancient star cluster in the Milky Way. Made of helium rather than the usual carbon and oxygen, these white dwarf stars appear ...

Apr 27, 2009
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