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Astronomy Cast, episode 281 from Monday, November 19, 2012, explosions in space.

Welcome to Astronomy Cast, our weekly facts-based journey through the cosmos to help you understand not only what we know, but how we know what we know.

My name is Fraser Cain, I'm the publisher of University Day, and with me is Dr. Pamela Gay, a professor at Southern Illinois University, Evertsville.

Happy Thanksgiving, Pamela.

Happy Thursday in Canada.

Exactly. Thanks for having already happened a long time ago, but you know what's really weird?

Is we're getting Black Friday in Canada now.

You are?

Yeah, so we're all of our stores and stuff. We're now doing Black Friday events, but it doesn't mean anything.

What is this Black Friday thing?

I mean, Canadians all know because we see Americans go crazy every year for shopping, but we had never had sales that were called Black Friday in Cyber Monday, and now this is the first year, clearly some kind of conspiracy.

They're all getting together and doing it, so I bought a new lens for my camera, thanks to the upcoming Black Friday.

I bought a new 50 millimeter lens for my camera, a nifty 50, so cool.

All right, so just to remind everybody that this is a, we record these episodes of Astrology Cast as a live Google plus Hangout.

We do this every Monday at noon in theory, although we're not doing it on Monday right now, but normally we do it on Monday.

So if you want to watch us record live, ask questions, see what we look like, you can do that.

All right, let's get rolling.

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