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Leading science journalists provide a daily minute commentary on some of the most interesting developments in the world of astronomy and space exploration. For a full-length, weekly podcast you can subscribe to Science Talk: The Podcast of Scientific American . To view all of our archived podcasts please go to www.scientificamerican.com/podcast


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Title: Giant Energetic Bubbles Adorn the Milky Way

Giant Energetic Bubbles Adorn the Milky Way

April 26th, 2011

Two 30,000 light-year-long blobs called Fermi bubbles have been discovered on either side of our galactic plane. John Matson reports Go to Episode

Comet Bops Past Neptune Cleanly

May 2nd, 2011

Comet Hale-Bopp has been spotted beyond the orbit of Neptune, far enough from the sun to be without its dirty tail. John Matson reports Go to Episode

Milky Way Should Have Much More Companionship

May 9th, 2011

Our understanding of dark matter says the Milky Way should have many times more than its dozen or so small satellite galaxies. John Matson reports Go to Episode

Space Boat Could See Sea Near Saturn

May 16th, 2011

Among projects under consideration by NASA is one that would send a boat to the hydrocarbon sea on Saturn's moon Titan to check out its composition and… Go to Episode