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Astronomycast, episode 186 from Monday, April 19, 2010.

History of astronomy, part four, the beginning of modern astronomy.

Welcome to Astronomycast, our weekly facts based journey through the cosmos

where we help you understand not only what we know, but how we know what we know.

My name is Fraser Cane. I'm the publisher of university today.

And with me is Dr. Pamela Gaia Professor at Southern Illinois University.

Hi, Pamela. How are you doing?

I'm doing well, Fraser. How are you doing?

Very well. Freezing cold, though.

That's a little cold here in Canada.

I know. Surprise, surprise.

...