Asteroid Day! Earth Plays Defense
Planetary Radio: Space Exploration, Astronomy and Science
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Planetary Radio: Astroid Day
planetary radio is published the day before asteroid day, june 30. I invited danika to tell us about this global event. Some countries have almost monthlong activities around astroid day. Chile has had a national writing competition every year for fourth graders in which they write something that is the exact number of years since the astroid blew up in chellibinsk.
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