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	Search Results for Galaxies Search Type: Keywords | Results: Radio Programs | Images | FAQs | Other Resources | Search Again Definition Galaxy: A vast "island" of stars, gas, and dust, which populates the universe by the billions. Galactic size and structure range from subtle ellipticals to grand spirals with the mass of at least 100 billion stars. More » Stargazing Tip No stargazing tips found. Check the Sky Almanac for more information. Radio Programs Displaying 1 to 5 (of 74 total) results | More results »  Title  Air Date More M87 May 14, 2009 M87 May 13, 2009 Building Galaxies April 29, 2009 Tough Neighborhood April 27, 2009 Black-Eye Galaxy April 11, 2009 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 59 total) results | More results »  Image Bursting with Starbirth A Big Shiner Galactic Turmoil Jetting Away Getting Hitched Frequently Asked Questions Displaying 1 to 3 (of 3 total) results  Question How many galaxies are there in the universe? What is the nearest galaxy? How many stars are in the Milky Way? Other Resources StarDate Online | News | Dark Matter Found In Galactic 'Ghosts' http://stardate.org/resources/news/universe/199904.html StarDate Online | News | Astronomers Push Back Most Prolific Star-Forming Era — Maybe http://stardate.org/resources/news/universe/200204.html StarDate Online | News | A Long Night Ahead for the Universe http://stardate.org/resources/news/universe/199704.html StarDate Online | News | Structure of Universe Supports Accelerating Expansion http://stardate.org/resources/news/universe/200206.html StarDate Online | News | Universe Doesn't Look a Day Over 12 Billion Years Old http://stardate.org/resources/news/universe/199908.html StarDate Online | News | Glow Between Clusters Could Be Missing Mass http://stardate.org/resources/news/universe/199808.html StarDate Online | Classroom Activities http://stardate.org/teachers/activities/ StarDate Online | News | Universe Will Expand Forever, Astronomers Say http://stardate.org/resources/news/universe/199804.html StarDate Online | News | Time Marches On...But How? http://stardate.org/resources/news/universe/200306b.html StarDate Online | News | Dating the Universe with Stellar Relics http://stardate.org/resources/news/universe/200208.html StarDate Online | News | Balloon Experiments Map Creation's Glow http://stardate.org/resources/news/universe/200008.html StarDate Online | News | Hubble's Deepest View http://stardate.org/resources/news/universe/200406a.html StarDate Online | Solar System Guide | Explorations in 2009 http://stardate.org/resources/ssguide/explorations.html StarDate Online | News | Hipparcos Data Could Change Universe's Size http://stardate.org/resources/news/universe/199706.html StarDate Online | News | Satellite Answers Big Questions, Poses More http://stardate.org/resources/news/universe/200306a.html StarDate Online | Solar System Guide | Explorations in 2008 http://stardate.org/resources/ssguide/explorations2008.html StarDate Online | News | Constant Controversy Bedevils Hubble’s Magic Number http://stardate.org/resources/news/universe/200612.html StarDate Online | News | Size and Age of the Universe http://stardate.org/resources/news/universe/ StarDate Online | News | Universal Constants May Not Be http://stardate.org/resources/news/universe/200112.html StarDate Online | News | Clues to Early Universe Could Be Tainted http://stardate.org/resources/news/universe/200406b.html
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