SGU Episode 939 - Revision history

Xanderox: /* Quickie with Bob (11:55) */ segment title addt'l details

2023-10-16T20:26:53Z

Quickie with Bob (11:55): segment title addt'l details

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	== Quickie with Bob <small>(11:55)</small> ==		== Quickie with Bob: The Impossible Planet <small>(11:55)</small> ==
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	'''S:''' Bob, you're going to give us a quickie.		'''S:''' Bob, you're going to give us a quickie.

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+'''E:''' "It's a bad plan that admits of no modification." Publilius Syrus.
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 == Signoff ==

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	== Announcements <small>(1:16:32)</small> ==		== Announcements <small>(1:16:32)</small> ==

			'''J:''' So the big thing that we have coming up, guys, the thing that I've been pouring a ton of my time into is a conference called NOTACON. This conference has a few things about it that you need to know. First of all, the conference is we're calling it NOTACON because it's not like your traditional conference. There's not going to be 20 or 30 speakers over the course of two and a half days that you're going to listen to. The entertainment that will be provided at this conference will come from the entire SGU cast, George Hrabb, Brian Wecht, and Andrea Jones-Roy. We have a ton of events and bits and shows that we have planned, that we've been writing. We're still working on it today. We're still improving on the show and coming up with new and better ideas that we're going to do. But we have a core group of things that I'll probably reveal within the next couple of weeks. I'll put the list of all the different events that will be happening. But the good news is that this conference is going to have plenty of time built in for you to have meals with your friends, to have nighttime activity with your friends. Because what we'll be doing, for example, on Friday night, we're going to be doing a live Boomer versus Zoomer, which is our game show. We'll be picking people out of the audience. But then there'll be plenty of time afterwards to go to the bar in the hotel and hang out and to have hours of time to do all the socializing that we all love to do at these conferences. So I highly recommend that you give this conference a chance. It's going to be a great place to meet people. If you're new to the skeptical community, or if you've been listening to the SGU for years and you already have friends and you used to go to NECSS or whatever, this is a great conference to go to because a lot of your friends will be there. So go to [https://www.theskepticsguide.org/ theskepticsguide.org] to get more information. There's a button on there that will take you to the registration page. And if you have any information that you'd like to know, you can also email us at INFO@theskepticsguide.org.

			'''S:''' Thank you, Jay.

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	== Questions/Emails/Corrections/Follow-ups ==		== Questions/Emails/Corrections/Follow-ups ==
	=== Email #1: Politicization of skeptical topics <small>(1:18:41)</small> ===		=== Email #1: Politicization of skeptical topics <small>(1:18:41)</small> ===

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+'''S:''' Jay. It's who's that noisy time?
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+'''E:''' Happy skeletons dancing around.
 == Announcements <small>(1:16:32)</small> ==

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			'''S:''' Bob, you're going to give us a quickie.

			'''B:''' Yes. Thank you, Steve. This is your quickie with Bob. The planet that should be dead but isn't. Kind of fits our discussion so far today. The Hawaii Institute for Astronomy made a fascinating discovery recently, a planet called 8UMib, U-M-I-B, or HALIA. Planet HALIA is orbiting a red giant star, Baekdu, at half the Earth-Sun distance. But, and there's a big but here. The star was already burning helium. So that means that it had already swelled into a red giant star once before and now it's shrunk down to its current size. But the thing is, that means the star would have already ballooned its super hot outer atmosphere to one and a half times the distance to HALIA.

			'''E:''' It would have absorbed that planet.

			'''B:''' So at one time, yeah, it should have been like engulfed. So what was HALIA doing there existing, basically? How was it still there? This is what our sun is going to do in about six billion years. It's going to swell into a giant and probably, probably, not definitely, but probably burn the Earth to a crisp. So how did HALIA escape that fate? We're not sure exactly what happened. But one thing we are sure about, HALIA did not just sweat it out and endure the heat. That's just not in the cards, not going to happen, not one of the available options. So what are the more reasonable options? Well, my first thought, and I'm sure many of your first thoughts as well, was this is maybe a hot Jupiter scenario where you've got a high mass, short period planet around Jupiter mass, approximately. That is very, very close to the planet to the star, the parent star. And it is thought one of the theories is that such a hot Jupiter was created at the outskirts of the solar system and then kind of migrated in really close. Maybe that's what HALIA did, but apparently not. The researchers believe that this is not a viable option considering, they say, how fast the changes would have been happening to the parent star. That's not really an option. Okay, what are the other options? And these are interesting. Another theory is that Baekdu was in fact a binary star in its past. And the merger of those two stars prevented one of them, one or the other from expanding enough to sear poor HALIA to a crisp. So maybe the fact that it was binary and they merged prevented this swelling of the outer atmosphere enough to destroy the planet. Okay. Another option is that the planet is maybe actually like a baby planet, a planet that was born from the gas of a former binary system that created a second generation planet that never had to face being engulfed because it had already happened the swelling already happened before it was created. So that's interesting as well. So those are interesting options. Hopefully we'll find in the future what exactly is going on. Binary stars, as you probably know, are incredibly common. You look at, most stars you look at up in the night sky are binary or trinary, more so than singletons. Binary stars are incredibly common in the universe. And we just don't know a lot yet about all the different ways that planets and binary stars evolve together. And hopefully systems like HALIA and Bekdu will one day show us new ways planets are born and die and perhaps how they even escape fiery deaths. And this was your Quickie with Bob. Back to you, Steve.

			'''S:''' Thanks, Bob.

	== News Items ==		== News Items ==

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