articles tagged "Galaxy Evolution"

Green Pea Galaxies and the Origins of the Universe

Wednesday, 28 August 2013 | buzz
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On August 26, 2013 Monday host Brian Standing took us on a trip one and a half billion light years away. Out there, lie some round, green blobs that turn out to be galaxies very unlike our own Milky Way. These galaxies, dubbed the Green Peas due to their apparent color, turn out not only to be highly efficient star factories, but may hold some clues to the origins of the universe, shortly after the Big Bang. Anne Jaskot is a graduate student in astronomy at the University of Michigan, and recently authored the paper THE ORIGIN AND OPTICAL DEPTH OF IONIZING RADIATION IN THE “GREEN PEA” GALAXIES. more »

The Milky Way: An Insider’s Guide

Tuesday, 20 August 2013 | buzz
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What does our galaxy smell like? Believe it or not, that question is a serious one. William H. Waller, an astrophysicist who has taught and studied at the Harvard-Smithsonian Institute, the Goddard Space Center and Tufts University, joined Brian Standing on Monday, August 19, to chat about the radial-armed galaxy we call home. Waller currently teaches science at Rockport Massachussetts High School – lucky students – and is the author of The Milky Way: An Insider’s Guide, available from Princeton University Press. more »

Star Clusters and Galaxy Evolution

Thursday, 6 December 2012 | Radio Astronomy
The Hubble Space Telescope has captured the most detailed images to date of the open star clusters NGC 265 (top) and NGC 290 (bottom) in the Small Magellanic Cloud -- two sparkling sets of gemstones in the southern sky. These brilliant open star clusters are located about 200,000 light-years away and are roughly 65 light-years across.  Image credit: NASA/ESA/STScI

UW Madison Astronomy PhD student Jenna Ryon explains the importance of star clusters for studies of galaxy evolution. Listen and learn! more »

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