What is a galaxy? (Vote now!)
Classification is key to all sciences, but can often cause debate. Within astronomy, fierce debates have raged over the definition of a planet, both on the low-mass end, as well as the high-mass end. A recent paper explores definitions on a larger scale, pondering the definition of a galaxy, particularly, what separates the smallest of galaxies, the dwarf galaxies, from star clusters.
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Read the rest of What is a galaxy? (Vote now!) (704 words)
© jvois for Universe Today, 2011. | Permalink | No comment | Add to del.icio.us
Post tags: Astronomy, galaxies
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