Overview
Season 4 opens with an exploration of dying stars, the process where stars become supernovas, and, occasionally, become the biggest blast in the universe as a gamma ray burst (GRB). One death star, named WR104, lurks 8,000 light-years from Earth and some believe its GRB arrow is aimed directly at us. A death star galaxy named 3C321 is a frightening vision of what could one day befall the Milky Way galaxy: a companion galaxy's black hole being hammered with a constant blast of high-energy particles, wreaking havoc with its celestial bodies. Nearby, Death Stars Eta Carinae and Betelgeuse burn through their fuel supplies as they hurtle toward extinction...which just may be too close for comfort.
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4 - 1Death Stars August 18, 2009 -
4 - 2The Day the Moon Was Gone August 25, 2009 -
4 - 3It Fell From Space September 01, 2009 -
4 - 4Biggest Blasts September 08, 2009 -
4 - 5The Hunt for Ringed Planets September 15, 2009 -
4 - 610 Ways to Destroy the Earth September 22, 2009 -
4 - 7The Search for Cosmic Clusters September 29, 2009 -
4 - 8Space Wars October 06, 2009 -
4 - 9Liquid Universe October 20, 2009 -
4 - 10Pulsars & Quasars October 27, 2009 -
4 - 11Science Fiction, Science Fact November 03, 2009 -
4 - 12Extreme Energy November 10, 2009