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Star Cluster Current Events - the latest Star Cluster news stories, articles, research and discoveries.
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Star on a Hubble diet
How heavy can a star be? This conundrum has haunted astronomers for decades. Theory indicates that there should be an upper stellar mass limit somewhere between 120 and 300 solar masses. Even though heavy stars are very bright, measurements of their masses can be complicated. View News Article (2006-12-12)

Lives and deaths of sibling stars
This beautiful star cluster, NGC 3293, is found 8000 light-years from Earth in the constellation of Carina (The Keel).  View News Article (2014-07-23)

Supernova radioisotopes show sun was born in star cluster, scientists say
The death of a massive nearby star billions of years ago offers evidence the sun was born in a star cluster, say astronomers at the University of Illinois at Urbana-Champaign. View News Article (2006-10-05)

Largest collection of anomalous white dwarfs observed in new Hubble images
Twenty-four unusual stars, 18 of them newly discovered, have been observed in new Hubble telescope images. The stars are white dwarfs, a common type of dead star, but they are odd because they are made of helium rather than the usual carbon and oxygen. This is the first extensive sequence of helium-core white dwarfs to be observed in a globular cluster, a dense swarm of some of the oldest stars... View News Article (2009-04-23)

Stripped down: Hubble highlights 2 galaxies that are losing it
Ram pressure is the drag force that results when something moves through a fluid - much like the wind you feel in your face when bicycling, even on a still day - and occurs in this context as galaxies orbiting about the centre of the cluster move through the intra-cluster medium, which then sweeps out gas from within the galaxies. View News Article (2009-09-30)

A Simple View Of Gravity Does Not Fully Explain The Distribution Of Stars In Crowded Clusters
Gravity remains the dominant force on large astronomical scales, but when it comes to stars in young star clusters the dynamics in these crowded environments cannot be simply explained by the pull of gravity. View News Article (2013-02-21)

Discovery of a very massive, isolated star in a nearby galaxy
Astronomy & Astrophysics is publishing the discovery of a very massive, isolated star in a galaxy near our Milky Way.  View News Article (2011-05-25)

Many comets originally formed in other solar systems: Queen's University astronomer
Many of the most well known comets in history, including Halley, Hale-Bopp and McNaught, may have been born in orbit around other stars and not the Sun, according to a new study by Queen's University astronomy professor Martin Duncan and an international team of astronomers. View News Article (2010-06-11)

Astronomers explain why a star is so hot right now
Astronomers have solved a mystery over small, unusually hot blue stars, 10 times hotter than our Sun, that are found in the middle of dense star clusters. View News Article (2015-06-24)

Discovery of Giant X-ray Loop Hints at Cosmic Particle Accelerator
Astronomers have found a vast loop-like structure, 20 light years across, adjacent to the most massive star-forming region known in our galaxy. The loop, which was observed in X-ray wavelengths, is 15 times the size of the Arches Cluster, a star-forming region close to the centre of the Milky Way. This is the first time that such a distinctive and huge loop structure has been observed. Dr Masaaki... View News Article (2005-03-31)

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