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    <description>Real NASA astronomers answer questions about the exciting science of astronomy.</description>
    <itunes:summary>Real NASA astronomers answer questions about the exciting science of astronomy.</itunes:summary>
    <itunes:subtitle>Brought to You by NASA's Spitzer Science Center (SSC) and the Infrared Processing and Analysis Center (IPAC)</itunes:subtitle>
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    <pubDate>Wed, 26 Aug 2009 13:20:00 -0700</pubDate>
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      <title>Where Is the Center of the Universe?</title>
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      <description>Dr. Varoujan Gorjian explains the mind-boggling expansion of the Universe.</description>
      <itunes:subtitle>Dr. Varoujan Gorjian explains the mind-boggling expansion of the Universe.</itunes:subtitle>
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      <title>What Is It?  (W-5 Star-Forming Region)</title>
      <link>http://www.odeo.com/episodes/24053986-What-Is-It-W-5-Star-Forming-Region</link>
      <description>Visit the W-5 star-forming region with Ask an Astronomer!</description>
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      <title>Why Is the Sky Blue?</title>
      <link>http://www.odeo.com/episodes/23795136-Why-Is-the-Sky-Blue</link>
      <description>Dr. Carolyn Brinkworth fills us in on what the color of the sky has to do with finding life on distant planets.</description>
      <itunes:subtitle>Dr. Carolyn Brinkworth fills us in on what the color of the sky has to do with finding life on distant planets.</itunes:subtitle>
      <itunes:summary>Dr. Carolyn Brinkworth fills us in on what the color of the sky has to do with finding life on distant planets.</itunes:summary>
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      <pubDate>Mon, 22 Dec 2008 16:11:00 -0800</pubDate>
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      <title>Why Is the Sky Blue?</title>
      <link>http://www.odeo.com/episodes/23793551-Why-Is-the-Sky-Blue</link>
      <description>Dr. Carolyn Brinkworth fills us in on what the color of the sky has to do with finding life on distant planets.</description>
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      <pubDate>Mon, 22 Dec 2008 16:03:00 -0800</pubDate>
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      <title>What's Between the Stars?</title>
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      <description>Dr. Michelle Thaller explains how there can be an interstellar medium in a vacuum.</description>
      <itunes:subtitle>Dr. Michelle Thaller explains how there can be an interstellar medium in a vacuum.</itunes:subtitle>
      <itunes:summary>Dr. Michelle Thaller explains how there can be an interstellar medium in a vacuum.</itunes:summary>
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      <pubDate>Thu, 23 Oct 2008 13:55:00 -0700</pubDate>
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      <title>What's Between the Stars?</title>
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      <description>Dr. Carolyn Brinkworth explains how there can be an interstellar medium in a vacuum.</description>
      <itunes:subtitle>Dr. Carolyn Brinkworth explains how there can be an interstellar medium in a vacuum.</itunes:subtitle>
      <itunes:summary>Dr. Carolyn Brinkworth explains how there can be an interstellar medium in a vacuum.</itunes:summary>
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      <title>Special: Spitzer Turns Five</title>
      <link>http://www.odeo.com/episodes/23213433-Special-Spitzer-Turns-Five</link>
      <description>On the Spitzer Space Telescope's fifth anniversary, we look back at a few of its most remarkable discoveries.</description>
      <itunes:subtitle>On the Spitzer Space Telescope's fifth anniversary, we look back at a few of its most remarkable discoveries.</itunes:subtitle>
      <itunes:summary>On the Spitzer Space Telescope's fifth anniversary, we look back at a few of its most remarkable discoveries.</itunes:summary>
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      <pubDate>Mon, 25 Aug 2008 10:00:00 -0700</pubDate>
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      <itunes:author>Ask an Astronomer Videos</itunes:author>
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    <item>
      <title>What Will Happen to the Earth When the Sun Dies?</title>
      <link>http://www.odeo.com/episodes/23041397-What-Will-Happen-to-the-Earth-When-the-Sun-Dies</link>
      <description>Our Sun won't last forever. Dr. Carolyn Brinkworth explains the ramifications for our home planet.</description>
      <itunes:subtitle>Our Sun won't last forever. Dr. Carolyn Brinkworth explains the ramifications for our home planet.</itunes:subtitle>
      <itunes:summary>Our Sun won't last forever. Dr. Carolyn Brinkworth explains the ramifications for our home planet.</itunes:summary>
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      <pubDate>Tue, 01 Jul 2008 09:20:00 -0700</pubDate>
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      <category>Astronomy</category>
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      <title>Can a Planet Have Two Suns?</title>
      <link>http://www.odeo.com/episodes/22492885-Can-a-Planet-Have-Two-Suns</link>
      <description>Dr. Carolyn Brinkworth examines whether science fiction could be science fact.</description>
      <itunes:subtitle>Dr. Carolyn Brinkworth examines whether science fiction could be science fact.</itunes:subtitle>
      <itunes:summary>Dr. Carolyn Brinkworth examines whether science fiction could be science fact.</itunes:summary>
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      <pubDate>Thu, 08 May 2008 10:00:00 -0700</pubDate>
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      <title>Can a Galaxy Die?</title>
      <link>http://www.odeo.com/episodes/22406016-Can-a-Galaxy-Die</link>
      <description>Dr. Varoujan Gorjian fills us in on the end of a galaxy.</description>
      <itunes:subtitle>Dr. Varoujan Gorjian fills us in on the end of a galaxy.</itunes:subtitle>
      <itunes:summary>Dr. Varoujan Gorjian fills us in on the end of a galaxy.</itunes:summary>
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      <pubDate>Thu, 10 Apr 2008 08:40:00 -0700</pubDate>
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      <title>Why Aren't There Any Green Stars?</title>
      <link>http://www.odeo.com/episodes/22167503-Why-Aren-t-There-Any-Green-Stars</link>
      <description>Dr. Michelle Thaller why some stars appear red or blue, but not green.</description>
      <itunes:subtitle>Dr. Michelle Thaller why some stars appear red or blue, but not green.</itunes:subtitle>
      <itunes:summary>Dr. Michelle Thaller why some stars appear red or blue, but not green.</itunes:summary>
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      <pubDate>Thu, 13 Mar 2008 13:25:00 -0700</pubDate>
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      <title>How Do You Discover an Asteroid?</title>
      <link>http://www.odeo.com/episodes/22136432-How-Do-You-Discover-an-Asteroid</link>
      <description>Dr. Bidushi Bhattacharya helps us understand how astronomers find these tiny space rocks.</description>
      <itunes:subtitle>Dr. Bidushi Bhattacharya helps us understand how astronomers find these tiny space rocks.</itunes:subtitle>
      <itunes:summary>Dr. Bidushi Bhattacharya helps us understand how astronomers find these tiny space rocks.</itunes:summary>
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      <pubDate>Wed, 13 Feb 2008 11:04:00 -0800</pubDate>
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      <itunes:author>Ask an Astronomer Videos</itunes:author>
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      <title>Special: Infrared: More Than Your Eyes Can See</title>
      <link>http://www.odeo.com/episodes/22116869-Special-Infrared-More-Than-Your-Eyes-Can-See</link>
      <description>Dr. Michelle Thaller explains infrared light in this classic video.</description>
      <itunes:subtitle>Dr. Michelle Thaller explains infrared light in this classic video.</itunes:subtitle>
      <itunes:summary>Dr. Michelle Thaller explains infrared light in this classic video.</itunes:summary>
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      <pubDate>Tue, 18 Dec 2007 13:30:00 -0800</pubDate>
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      <title>Special: M51 and Gizmo in 'Half-Baked Plan'</title>
      <link>http://www.odeo.com/episodes/22116871-Special-M51-and-Gizmo-in-Half-Baked-Plan</link>
      <description>What makes the Earth livable? In this special animated cartoon, innocent alien M51 moves the Earth into a closer orbit around the sun, and learns an important lesson about life in the Universe.</description>
      <itunes:subtitle>What makes the Earth livable? In this special animated cartoon, innocent alien M51 moves the Earth into a closer orbit around the sun, and learns an important lesson about life in the Universe.</itunes:subtitle>
      <itunes:summary>What makes the Earth livable? In this special animated cartoon, innocent alien M51 moves the Earth into a closer orbit around the sun, and learns an important lesson about life in the Universe.</itunes:summary>
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      <pubDate>Mon, 05 Nov 2007 11:45:00 -0800</pubDate>
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      <itunes:author>Ask an Astronomer Videos</itunes:author>
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      <title>What Happens When Galaxies Collide?</title>
      <link>http://www.odeo.com/episodes/22116873-What-Happens-When-Galaxies-Collide</link>
      <description>Dr. Varoujan Gorjian takes us inside interacting galaxies.</description>
      <itunes:subtitle>Dr. Varoujan Gorjian takes us inside interacting galaxies.</itunes:subtitle>
      <itunes:summary>Dr. Varoujan Gorjian takes us inside interacting galaxies.</itunes:summary>
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      <pubDate>Fri, 14 Sep 2007 11:45:00 -0700</pubDate>
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      <itunes:author>Ask an Astronomer Videos</itunes:author>
      <category>Astronomy</category>
      <category>astronomer</category>
      <category>NASA's</category>
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      <title>What Is the Nearest Galaxy to the Milky Way?</title>
      <link>http://www.odeo.com/episodes/22116875-What-Is-the-Nearest-Galaxy-to-the-Milky-Way</link>
      <description>Dr. Michelle Thaller takes us into the murky answer to this not-so-simple question.</description>
      <itunes:subtitle>Dr. Michelle Thaller takes us into the murky answer to this not-so-simple question.</itunes:subtitle>
      <itunes:summary>Dr. Michelle Thaller takes us into the murky answer to this not-so-simple question.</itunes:summary>
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      <pubDate>Fri, 27 Jul 2007 14:15:00 -0700</pubDate>
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      <category>Astronomy</category>
      <category>astronomer</category>
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      <title>Why Isn't Pluto a Planet Any More?</title>
      <link>http://www.odeo.com/episodes/22116877-Why-Isn-t-Pluto-a-Planet-Any-More</link>
      <description>Dr. Robert Hurt explains why Pluto got... well... plutoed.</description>
      <itunes:subtitle>Dr. Robert Hurt explains why Pluto got... well... plutoed.</itunes:subtitle>
      <itunes:summary>Dr. Robert Hurt explains why Pluto got... well... plutoed.</itunes:summary>
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      <pubDate>Mon, 12 Feb 2007 15:15:00 -0800</pubDate>
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      <title>How Can We See a Black Hole?</title>
      <link>http://www.odeo.com/episodes/22116879-How-Can-We-See-a-Black-Hole</link>
      <description>If no light can escape from a black hole, how do we see them? Dr. Tom Jarrett answers.</description>
      <itunes:subtitle>If no light can escape from a black hole, how do we see them? Dr. Tom Jarrett answers.</itunes:subtitle>
      <itunes:summary>If no light can escape from a black hole, how do we see them? Dr. Tom Jarrett answers.</itunes:summary>
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      <pubDate>Thu, 24 Aug 2006 16:20:00 -0700</pubDate>
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      <title>What Is a Redshift?</title>
      <link>http://www.odeo.com/episodes/22116881-What-Is-a-Redshift</link>
      <description>Dr. Tom Jarrett helps us understand this difficult scientific concept using a biplane, a flying saucer, and a cow.</description>
      <itunes:subtitle>Dr. Tom Jarrett helps us understand this difficult scientific concept using a biplane, a flying saucer, and a cow.</itunes:subtitle>
      <itunes:summary>Dr. Tom Jarrett helps us understand this difficult scientific concept using a biplane, a flying saucer, and a cow.</itunes:summary>
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      <description>Dr. Michelle Thaller explains the color scheme of the Spitzer Space Telescope.</description>
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      <description>Dr. Susan Stolovy answers the question of why only certain regions can see a solar eclipse.</description>
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      <description>Doris Daou explains what causes eclipses.</description>
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      <description>Dr. Robert Hurt answers a question about solar physics.</description>
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