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By Duane Lee on September 28, 2009 in

Date: September 28, 2009 Title: The Connection Between Metal Abundances and the Evolution of Galaxies Podcaster: Duane Lee from Columbia Astronomy Organization: Columbia University Astronomy http://outreach.astro.columbia.edu Description: Metals in astronomy refer to any element heavier than Helium on the periodic table. The abundance of metals, with the exception of a few, tells us the processing […]

By Larry Sessions on September 11, 2009 in
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Date: September 11, 2009 Title: Pluto, Stand Thou Still! Podcaster: Larry Sessions Organization: None Description: Pluto, the only object ever to be demoted from full planet status, is stationary today, even though it currently is traveling at about 5 kilometers per second! It never stops, so how can it be “stationary?” Motion – or lack thereof […]