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	Search Results for Galaxy Clusters Search Type: Keywords | Results: Radio Programs | Images | FAQs | Other Resources | Search Again Definition Cluster: A grouping of the same types of astronomical objects. For example, stars in the Milky Way can group together into open clusters or globular clusters. More » Stargazing Tip No stargazing tips found. Check the Sky Almanac for more information. Radio Programs Displaying 1 to 5 (of 22 total) results | More results »  Title  Air Date Largest Void February 18, 2009 First Supercluster February 17, 2009 Galactic Giants May 9, 2008 Nature vs. Nurture May 8, 2008 Hostile Environment May 7, 2008 Note: Audio versions of our programs will be available the day after they air. Visit the transcript page to listen. Image Gallery Displaying 1 to 5 (of 18 total) results | More results »  Image Glowing Galaxies Crowded Neighborhood Sharper View Galaxies Galore Galactic Giant Frequently Asked Questions Displaying 1 to 1 (of 1 total) results  Question How big is our galaxy? Other Resources StarDate Online | News | Constant Controversy Bedevils Hubble’s Magic Number http://stardate.org/resources/news/universe/200612.html StarDate Online | News | Glow Between Clusters Could Be Missing Mass http://stardate.org/resources/news/universe/199808.html StarDate Online | Activities | The Milky Way http://stardate.org/teachers/activities/milkyway.html StarDate Online | News | Universe Will Expand Forever, Astronomers Say http://stardate.org/resources/news/universe/199804.html StarDate Online | News | Clues to Early Universe Could Be Tainted http://stardate.org/resources/news/universe/200406b.html StarDate Online | News | Telescope Ready to Listen for Cosmic ‘Howdy-Do’ http://stardate.org/resources/news/planets/200604.html StarDate Online | News | Extrasolar Planets http://stardate.org/resources/news/planets/index.html StarDate Online | News | Two Discoveries Reveal Diversity of Galaxy's Extrasolar Planets http://stardate.org/resources/news/planets/200606.html StarDate Online | News | Astronomers Push Back Most Prolific Star-Forming Era — Maybe http://stardate.org/resources/news/universe/200204.html StarDate Online | News | Dark Matter Found In Galactic 'Ghosts' http://stardate.org/resources/news/universe/199904.html StarDate Online | Solar System Guide | Explorations in 2003 http://stardate.org/resources/ssguide/explorations2003.html StarDate Online | News | Dating the Universe with Stellar Relics http://stardate.org/resources/news/universe/200208.html StarDate Online - Your Guide to the Universe http://stardate.org/ StarDate Online | News | Balloon Experiments Map Creation's Glow http://stardate.org/resources/news/universe/200008.html StarDate Online | Browseable Keywords http://stardate.org/search/keywords/ StarDate Online | Solar System Guide | Earth and Moon http://stardate.org/resources/ssguide/earth_and_moon.html StarDate Online | Classroom Activities http://stardate.org/teachers/activities/ StarDate Online | Solar System Guide | Sun http://stardate.org/resources/ssguide/sun.html StarDate Online | News | A Long Night Ahead for the Universe http://stardate.org/resources/news/universe/199704.html StarDate Online | News | Size and Age of the Universe http://stardate.org/resources/news/universe/
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