Episode

Astronomy Cast

Wizzard Media

Science & Medicine, Natural Sciences

Chart Positions

Natural Sciences 11
Science & Medicine 32

Astronomy Cast brings you a weekly fact-based journey through the cosmos.

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Questions Show: Orbit of the Planets, Green Stars, and Oort Cloud Contamination

October 30th, 2008

Episode 123 of 464 episodes

We're back to a themeless questions show. We're right across the Universe this time. Why are the planets lined up in a nice flat plane? Why are there no green stars? And is the Oort Cloud contaminating our understanding of the cosmic microwave background radiation? If you've got a question for the Astronomy Cast team, please email it in to [email protected] and we'll try to tackle it for a future show. Please include your location and a way to pronounce your name.

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