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Astronomycast episode 456 Pluto Revisited.

Welcome to Astronomycast for 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 Cain.

I'm the publisher of University and with me is Dr. Pamela Gay, the Director of Technology and

Citizen Science at the Astronomical Society of Pacific and the Director of Cosmquest. Hey Pamela,

how's it going? It's going well. How's it going with you Fraser? Good. This is the first time we've

seen each other virtually since each other in reality in St. Louis. And that was kind of awesome

with the exception of I did not see Corona but you got to see it and everyone else got to see it.

So I took one for the team. So for those of you who have forgotten we had a big live event in

St. Louis 135 of our closest friends joined us live concert. We got a chance to go down and watch

the eclipse live in Carbondale. All of us sought except for Pamela who there was a big cloud

obscuring it and she. A little cloud. Yeah. Took that bullet so the rest of us could see it.

But thanks Pamela. And so I think now we're hoping to maybe do some other kind of event maybe

once a year. So stay tuned as we figure out what comes in the future. This week we return to our

starting point where astronomy cast began Pluto. 11 years on we have a whole new appreciation for

the dwarf planet. We visited it, probed it, taken its pictures. It's time for an update.

Let's just roll back the old astronomy cast memory Pamela. 11 years ago our first episode of

astronomy cast. What do we talk about? We talked about how just a few days previously,

well several days previously at the International Astronomical Union meeting in Poland,

there had been a vote that redefined what a planet is such that you can't have planets outside

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