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Astronomy cast episode 665 the age of reionization. Welcome to astronomy cast to weekly facts based

journey through the cosmos. We're helping to understand not only what we know but how we know what we know. I'm Frisur Kain publisher of the universe today with me is Doctor Pamela, gay assembly scientist for the planetary science institute and the director of cosm conquest. Hey Pamela how you doing? I am doing well right now with the American Astronomical Society meeting is taking place in Seattle and I was watching the beginning of a press conference earlier before we went live and there is so much JNB USD sign up. Yeah.

going to come out this week. It's tasty, awesome goodness. Yeah. Yeah. I got up early,

got as much of my news organized and out of the way because I just need to be prepared for the

ongoing tidal wave, the onslaught of news. And normally,

you know, when the astronomy panels come out, there's a few interesting takeaways,

but I can go a day without saying, okay, that's really interesting, and we should cover that

during the AAAS. So, you know, I'll do a couple. But I'm sure this one, each one is going to be

superlative, right? This is going to be the most of this and the most extreme that and the first

time we've ever seen this and this theory's been overturned, it's going to be a monumental

week in astronomy and science. The first time astronomers got a chance to use

G.W.S.T. and they are going to run with it. Yeah. Yeah. And we're looking at a couple of

decades of this and what I'm also enjoying is there are some hints coming out that it is being

considered if they can reboot HST to allow it to keep working for a little bit longer. Yeah.

So we might be looking at this nice era of having good coverage from slightly into the ultraviolet

all the way into the far infrared-ish, not too far because they don't have a lot of coolant,

but it's a good age for discovery. The cosmic microwave background radiation tells us so much

about the universe. But after that era, the universe went dark. Then as gas pulled together into

the first stars and eventually galaxies like returned, beginning the age of reionization.

I've always had a really hard time wrapping my mind around those early phases from the

cosmic microwave background to the dark ages to the age of reionization. So can you explain

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