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Astronomy Cast

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Aug 19, 2017

Pamela and Fraser talk about solar eclipse basics at their Solar Eclipse Escape event in Saint Louis on August 19th. What to do, and (perhaps more importantly) what NOT to do is covered!


Jan 26, 2012

Another edition of our weekly space hangout. This week we talked about a week of space remembrance, solar storms, Newt's plans for a 2020 lunar base, arsenic and old news, black holes and their galaxies and the death of...


Dec 18, 2006

We finally get organized enough deal with several listener questions: isn�t dark matter just regular stuff we can�t see? how can parts of the Universe be expanding faster than the speed of light? what will Betelgeuse look like when it explodes as a supernova? what�s the speed of gravity? All these...