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Okay, so you sent us some fascinating research about a storm on Jupiter.

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But not just any storm, we're talking about a swirling behemoth that could swallow our

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entire planet.

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It's true.

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It's hard to grasp the sheer scale of it.

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Jupiter's great red spot.

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This isn't just some fleeting weather event.

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This storm has been raging for centuries, maybe even longer.

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Centuries.

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That's older than the United States.

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It is, yeah.

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So what exactly are we dealing with here?

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Is it like a supersized hurricane?

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It's actually an anti-cyclone, meaning it spins in the opposite direction of Jupiter's

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rotation.

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Oh, wow.

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Imagine a colossal whirlpool of wind with a high pressure center, and those winds, they

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can reach speeds of up to 432 kilometers per hour.

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Whoa.

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That's faster than most bullet trains.

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Welcome to Cosmos in a Podspace and Astronomy series.

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I am already hooked.

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Great.

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Let's dive into what we know about this great red spot.

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You mentioned its size, but how big are we talking exactly?

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Even though it's been shrinking over time, it's still wider than the Earth.

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Really?

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To put that into perspective, if you could somehow place the Earth inside the great red

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spot, it would be like dropping a marble into a basketball.

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Wow.

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It's mind-boggling to think about.

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OK, so it's massive.

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It's ancient, and it spins in reverse.

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Right.

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What else makes this storm so unique?

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I'm guessing a storm that lasts this long.

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Yeah.

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Must have some pretty unusual factors at play.

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You're right.

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Unlike Earth, which has a solid surface that causes storms to lose energy through friction.

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Jupiter is a gas giant.

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That means there's no solid ground for the great red spot to rub against.

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So it just keeps swirling.

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It just keeps swirling.

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So it's like a spinning top that never runs out of momentum.

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Yeah.

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But what's driving this perpetual motion?

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It's fueled by Jupiter's internal heat, which is constantly rising and generating powerful

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jet streams in the atmosphere.

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The great red spot is basically trapped between two of these streams, holding it in place

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like a cosmic dance.

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Hold on.

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So this storm is hundreds of years old, and we've actually been watching it change.

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What kind of changes are we talking about?

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Scientists have been observing the great red spot for centuries, first with simple telescopes

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and now with high tech instruments like the Hubble Space Telescope and the Juno spacecraft.

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And what they've seen is a fascinating story of evolution.

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OK.

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You've piqued my curiosity.

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What exactly have we learned about this storm's evolution?

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Are we talking about changes in size, shape, intensity?

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All of the above.

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Really?

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It's shrunk in size.

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OK.

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Its shape has shifted slightly over time.

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And even its color has varied.

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Sometimes appearing a deep red and other times fading to a pale orange.

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Wait, color?

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Yeah.

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So why is it called the great red spot?

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What's giving it that reddish hue?

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Is it rust or something?

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That's where it gets really interesting.

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The prevailing theory is that the red color is caused by complex chemical reactions happening

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high in Jupiter's atmosphere.

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Oh, wow.

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And then light interacts with certain compounds like ammonia and hydrocarbons, possibly creating

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those reddish tones.

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So it's not just a giant storm.

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It was like a giant swirling chemistry experiment.

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It is.

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But if it's been around for centuries, someone must have spotted it before we had fancy telescopes,

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right?

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You're absolutely right.

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Yeah.

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Early astronomers like Giovanni Cassini and Robert Hooke observed the great red spot as

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far back as the 1660s.

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That's amazing.

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Imagine peering through those rudimentary telescopes and seeing this massive red oval

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on another planet.

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Talk about a mind blowing moment.

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That's amazing.

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From those early observations to modern space missions, it sounds like we've amassed quite

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a bit of knowledge about this storm.

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Over time, what are some of the key things we've learned from more recent observations?

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Well the Voyager probes in 1979 gave us our first detailed close up images of the great

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red spot.

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Cool.

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Revealing the intricate swirling patterns of its cloud tops.

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Those images were revolutionary.

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I bet.

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Seeing those close up images must have been like unlocking a new level of understanding.

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Absolutely.

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What about more recent missions?

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Has anything else added to our knowledge of the great red spot?

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Absolutely.

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The Juno mission, which has been orbiting Jupiter since 2016, has given us unprecedented

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insights into the great red spot's depth and internal structure.

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Juno's data suggests the storm extends over 300 kilometers into Jupiter's atmosphere.

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It's deep.

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300 kilometers deep.

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That's deeper than the entire Earth's atmosphere.

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It is, yeah.

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But it makes sense that we're sending spacecraft to study this thing.

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Right.

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It was more than just a cosmic curiosity, right?

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There's got to be real scientific value in understanding how a storm like this works.

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You're exactly right.

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Understanding the great red spot is like having a giant natural laboratory.

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Oh, wow.

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To understand planetary weather on a scale we simply can't replicate here on Earth.

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So it's not just about this one storm on Jupiter.

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No.

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It's about understanding the fundamental principles of how atmospheres work.

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Right.

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On other planets.

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Potentially even planets outside of our solar system.

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Exactly.

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So this massive storm is actually helping us understand Jupiter itself.

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Yes.

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It's actually other gas giants in the universe.

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Right.

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That's incredible.

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It is.

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And not just that.

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Okay.

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By comparing the great red spot to hurricanes and cyclones on Earth, researchers can refine

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their models of atmospheric physics.

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Okay.

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Which ultimately helps us understand weather patterns on our own planet better.

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Okay.

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So this great red spot, it's like a window into the workings of not only Jupiter's atmosphere,

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but potentially atmospheres on other planets as well.

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Right.

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So this is truly fascinating stuff.

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It is.

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And we're just getting started.

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Yeah.

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There are so many more intriguing questions to explore.

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Absolutely.

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Well then let's keep digging.

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Okay.

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We'll be back in part two to delve deeper into the mysteries of this fascinating storm.

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Sounds good.

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Don't go anywhere.

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All right.

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Welcome back to Cosmos in a Pod.

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Yeah.

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We're right in the thick of unraveling the mysteries of Jupiter's great red spot.

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Absolutely.

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It's a storm that continues to defy easy explanations and fuels our scientific curiosity.

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Yeah.

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It truly is a remarkable phenomenon.

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It is.

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And as we learn more about it, we're not just gaining insights into Jupiter itself, but

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also into the dynamics of atmospheres on other gas giants throughout our universe.

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That's what I find so fascinating about this whole thing.

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It's like studying one storm can unlock secrets about planets light years away.

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It is.

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Before we get too far ahead of ourselves, let's get back to the great red spot itself.

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Okay.

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You mentioned earlier that it's been shrinking.

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How much smaller has it gotten over time?

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It's a significant shrinkage, you see.

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The great red spot used to be large enough to comfortably fit three Earths inside it.

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Really?

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Now it's shrunk down to the point where it could only hold one Earth.

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Wow.

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That's a pretty dramatic decrease in size.

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It is.

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What are scientists saying about the cause of this shrinking?

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Is it something we should be concerned about?

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There's no need to worry about the great red spot disappearing anytime soon, at least not

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from her perspective here on Earth.

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However, scientists are very interested in understanding the mechanisms behind this shrinkage.

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So what are some of the leading theories about why the great red spot is getting smaller?

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Well there are several possibilities, and it's likely a combination of factors.

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One theory is that smaller storms and eddies are colliding with the great red spot, essentially

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nibbling away at its outer edges.

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So it's like a cosmic demolition derby with these smaller storms crashing into the great

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red spot and causing it to lose energy and shrink.

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That's a great way to visualize it.

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That's a good one.

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And then there's the influence of Jupiter's jet streams.

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Right, the ones that are basically holding the great red spot in place.

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Exactly.

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Well those jet streams can shift and change in intensity over time.

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And those changes could be impacting the stability and size of the great red spot.

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So it's like if the lanes on a highway suddenly narrowed or widened, it would affect the flow

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of traffic.

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Right.

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In this case, it's the flow of the storm that's being affected by the changing jet

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streams.

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Precisely.

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And we can't forget about Jupiter's internal heat.

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Yeah, that blew my mind when you first mentioned it.

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It's like Jupiter has its own internal furnace.

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It does.

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And that internal heat creates massive convection currents within Jupiter's atmosphere.

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These currents can interact with storms like the great red spot, potentially contributing

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to changes in the storm's dynamics, and it's shrinking as well.

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Okay, so we've got external forces like colliding storms and shifting jet streams.

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And then internal forces from Jupiter's own heat engine.

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It sounds like a complex interplay of factors.

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It is.

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And to make things even more challenging, all of these factors are interconnected and

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can influence each other.

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So it's not just about understanding each factor in isolation, but also how they interact

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as a whole.

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I'm starting to see why this is such a puzzle for scientists.

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It is.

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So how are they going about trying to unravel all of this?

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What tools and techniques are they using?

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Well, observation is key.

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Scientists are using both ground-based telescopes and space-based observatories, like the Hubble

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Space Telescope and the Juno spacecraft, to track changes in the great red spot's size,

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shape, color, and wind speeds over time.

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Right.

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We talked about how Juno is providing incredibly detailed close-up views of the storm.

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It is.

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Yeah.

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Juno is equipped with a suite of instruments that allow it to peer beneath Jupiter's cloud

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tops and study the great red spot in unprecedented detail.

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It's giving us a 3D view of the storm.

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It's revealing its depth, structure, and even the composition of its clouds.

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It sounds like Juno is our eyes and ears on Jupiter.

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It is.

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Sending back a treasure trove of data about the great red spot.

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Exactly.

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That's great.

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And in addition to observation, scientists are also developing sophisticated computer

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models of Jupiter's atmosphere.

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Oh, cool.

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These models allow them to simulate the great red spot and explore different scenarios for

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its evolution.

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So they're creating virtual versions of the great red spot to test out different ideas

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and see how various factors might be influencing its behavior.

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Precisely.

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I love that.

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By tweaking parameters in the model, such as the strength of the jet streams or the

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amount of internal heat emanating from Jupiter, they can see how those changes affect the

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storm's size, shape, and longevity.

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It's like conducting virtual experiments on the great red spot.

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It is.

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What are some of the findings from these models and observations?

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One of the most remarkable discoveries from Juno's data is that the great red spot extends

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much deeper into Jupiter's atmosphere than previously thought.

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Wait, we already talked about the storm being 300 kilometers deep.

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Yes.

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How could it be deeper than that?

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Are they saying it goes even further down?

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The 300 kilometer depth was just an initial estimate based on early data from Juno.

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Oh, OK.

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As the mission has progressed and collected more data, scientists have realized that the

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storm's influence extends even deeper into Jupiter's atmosphere.

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Wow, that's amazing.

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It is.

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It really is like peeling back the layers of an onion, isn't it?

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Fabulous.

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Every layer we uncover reveals more complexity.

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It is.

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And these discoveries have broader implications for our understanding of planetary atmospheres

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in general.

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OK.

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By studying the great red spot, we're learning about the processes that drive weather patterns

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on gas giants, both within our own solar system and beyond.

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So the great red spot isn't just a unique feature of Jupiter.

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No.

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It's a key to understanding the atmospheres of giant planets throughout the universe.

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You got it.

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And the more we learn about the great red spot, the more we realize how much there's

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still left to discover.

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I can't wait to hear about some of those unanswered questions and future directions of research.

285
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Absolutely.

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But before we jump into that, let's take a quick break to let everything we've learned

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so far sink in.

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All right.

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We'll be right back with more on Jupiter's great red spot.

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Welcome back to Cosmos in a Pod.

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We've been on quite a journey exploring Jupiter's great red spot, a storm that's equal parts

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awe-inspiring and scientifically baffling.

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It's a storm that continues to challenge our assumptions about planetary atmospheres

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and push the boundaries of what we thought was possible.

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And as we've dug deeper into its mysteries, we've uncovered a whole new set of questions

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that are just begging to be answered.

297
00:13:07,080 --> 00:13:08,080
Absolutely.

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So let's dive into some of those lingering unknowns that are keeping scientists up at

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night.

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One of the biggest questions, of course, is the fate of the great red spot.

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Will it continue to shrink and eventually vanish altogether?

302
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Or will it reach a point of stability?

303
00:13:20,640 --> 00:13:22,920
Yeah, that's the million dollar question, isn't it?

304
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It is.

305
00:13:23,920 --> 00:13:28,960
I mean, this storm has been raging for centuries, but it's been steadily shrinking for the past

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hundred years or so.

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It makes you wonder if it has a finite lifespan.

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It's certainly a possibility.

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And while scientists have made significant progress in understanding the factors that

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might be contributing to this shrinking, predicting its long term future is still a bit like trying

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to predict the weather here on Earth, only on a much grander scale and over a much longer

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time frame.

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So it's like chaos theory applied to a planetary atmosphere.

314
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Exactly.

315
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There's too many variables to make accurate long term predictions.

316
00:13:59,920 --> 00:14:00,920
Right.

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We're dealing with Jupiter's internal dynamics.

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The complex interactions between the great red spot and other storms in its atmosphere,

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the shifting jet streams and the influence of Jupiter's internal heat.

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It's a tangled web of influences.

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So even with all our advanced technology and scientific models, the future of the great

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red spot is still shrouded in mystery.

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What are some of the scenarios that scientists are considering?

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Is it a foregone conclusion that it will eventually disappear?

325
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Not necessarily.

326
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OK.

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Some scientists believe that the great red spot could continue to shrink at its current

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rate and eventually dissipate completely within the next few decades.

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That would indeed mark the end of an era.

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It would be sad to see such an iconic feature of Jupiter fade away.

331
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It would.

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But you're saying there's still a chance it could hang on.

333
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There is.

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Other scientists believe that the shrinking might slow down or even reverse at some point.

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They point to the great red spot's remarkable resilience and its ability to adapt and survive

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over centuries.

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It's weathered a lot of changes in Jupiter's atmosphere.

338
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So maybe it's not a case of if it will disappear, but when and how.

339
00:15:11,880 --> 00:15:12,880
Right.

340
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Are there any other possibilities besides it simply fading away?

341
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Absolutely.

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It's possible that the storm could reach a new equilibrium, a smaller but more stable

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state where the forces acting upon it balance out.

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Or it could undergo a dramatic transformation, perhaps merging with another storm.

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Or even splitting into multiple smaller storms.

346
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Really?

347
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We've seen similar things happen with hurricanes and cyclones on Earth.

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That would be incredible to witness.

349
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It would.

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Imagine the great red spot breaking apart into a family of smaller red spots.

351
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Right.

352
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But I guess we'll just have to wait and see what the future holds.

353
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We will.

354
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Even if the great red spot does eventually disappear.

355
00:15:51,600 --> 00:15:52,600
Yeah.

356
00:15:52,600 --> 00:15:56,160
But imagine the knowledge we've gained from studying it will continue to be valuable.

357
00:15:56,160 --> 00:15:57,160
Absolutely.

358
00:15:57,160 --> 00:15:58,920
The great red spot has been a scientific gift.

359
00:15:58,920 --> 00:15:59,920
Yeah.

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A natural laboratory that's allowed us to test our theories and push the boundaries

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of our understanding of planetary atmospheres.

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The insights we've gained will continue to shape our understanding of gas giants for

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generations to come.

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00:16:13,080 --> 00:16:18,760
Speaking of pushing boundaries, what are some of the other big unanswered questions about

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the great red spot that scientists are still grappling with?

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Besides its ultimate fate, what else are they trying to figure out?

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Well, one of the most enduring mysteries is the exact mechanism behind the storm's iconic

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red color.

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00:16:31,560 --> 00:16:32,560
Yeah.

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We know it's likely due to the presence of certain chemicals in the atmosphere, like

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ammonia, acetylene, and perhaps phosphine.

372
00:16:39,040 --> 00:16:40,040
Okay.

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These compounds react with sunlight in complex ways, but we still haven't pinned down the

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exact recipe for that distinctive red hue.

375
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It's amazing to me that something so visually striking is still a chemical puzzle.

376
00:16:52,640 --> 00:16:53,640
It is.

377
00:16:53,640 --> 00:16:54,960
You'd think we'd figure that out by now.

378
00:16:54,960 --> 00:16:56,600
It's more complicated than it seems.

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00:16:56,600 --> 00:17:01,240
The color has also varied over time, sometimes appearing more vibrant and other times fading

380
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to a pale orange.

381
00:17:02,240 --> 00:17:03,240
Yeah.

382
00:17:03,240 --> 00:17:07,840
So there are likely multiple factors influencing the color, and those factors may change over

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00:17:07,840 --> 00:17:08,840
time.

384
00:17:08,840 --> 00:17:09,840
So it's not just a static color.

385
00:17:09,840 --> 00:17:10,840
Right.

386
00:17:10,840 --> 00:17:13,680
It's dynamic and responsive to changes in the storm's chemistry and environment.

387
00:17:13,680 --> 00:17:14,680
It is.

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00:17:14,680 --> 00:17:16,040
What about the storm's depth and structure?

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We've talked about how deep it goes, but what's going on down there?

390
00:17:19,960 --> 00:17:21,640
That's another area of active research.

391
00:17:21,640 --> 00:17:22,640
Okay.

392
00:17:22,640 --> 00:17:27,280
We know from Juno's data that the Great Red Spot is incredibly deep, but we're still trying

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00:17:27,280 --> 00:17:29,280
to unravel its internal dynamics.

394
00:17:29,280 --> 00:17:30,280
Okay.

395
00:17:30,280 --> 00:17:31,840
How are those layers of the storm interacting?

396
00:17:31,840 --> 00:17:32,840
Right.

397
00:17:32,840 --> 00:17:35,640
How are the winds generated and maintained?

398
00:17:35,640 --> 00:17:39,000
How is energy distributed throughout its vast structure?

399
00:17:39,000 --> 00:17:40,000
Yeah.

400
00:17:40,000 --> 00:17:41,160
These are all open questions.

401
00:17:41,160 --> 00:17:44,600
It sounds like we're still just scratching the surface of understanding what makes this

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00:17:44,600 --> 00:17:45,600
storm tick.

403
00:17:45,600 --> 00:17:46,600
We are.

404
00:17:46,600 --> 00:17:51,440
It's mind-boggling to think about the sheer power and complexity of something that looks

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00:17:51,440 --> 00:17:54,280
like a simple red dot from Earth.

406
00:17:54,280 --> 00:17:55,520
It is humbling, isn't it?

407
00:17:55,520 --> 00:18:00,480
And it's a testament to human ingenuity that we're able to send spacecraft billions of

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00:18:00,480 --> 00:18:03,200
kilometers to study it in such detail.

409
00:18:03,200 --> 00:18:04,200
Absolutely.

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00:18:04,200 --> 00:18:07,800
The Great Red Spot is a reminder that there's still so much out there to discover, even

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00:18:07,800 --> 00:18:10,020
within our own solar system.

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00:18:10,020 --> 00:18:14,320
This has been an incredible journey, exploring the mysteries of Jupiter's Great Red Spot.

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00:18:14,320 --> 00:18:19,360
It's a storm that has captured the imagination of astronomers for centuries, and it continues

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to inspire awe and wonder today.

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00:18:21,940 --> 00:18:26,840
It's a reminder of the vastness and complexity of our universe and the endless possibilities

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00:18:26,840 --> 00:18:28,920
for scientific exploration.

417
00:18:28,920 --> 00:18:31,040
It's a story that's still being written.

418
00:18:31,040 --> 00:18:32,040
Absolutely.

419
00:18:32,040 --> 00:18:33,040
Yeah.

420
00:18:33,040 --> 00:18:35,760
And who knows what the next chapter holds for the Great Red Spot?

421
00:18:35,760 --> 00:18:40,120
Maybe it will continue to defy expectations and persist for centuries to come, or maybe

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00:18:40,120 --> 00:18:44,840
it will undergo a dramatic transformation that reshapes our understanding of Jupiter's

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00:18:44,840 --> 00:18:45,840
atmosphere.

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00:18:45,840 --> 00:18:47,200
Only time will tell.

425
00:18:47,200 --> 00:18:48,400
One thing's for sure.

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00:18:48,400 --> 00:18:53,040
The Great Red Spot will continue to captivate us and inspire us to push the boundaries of

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00:18:53,040 --> 00:18:54,200
our knowledge.

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00:18:54,200 --> 00:18:59,000
It's a symbol of the enduring power of curiosity and the thrill of discovery.

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00:18:59,000 --> 00:19:00,000
Well said.

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00:19:00,000 --> 00:19:04,080
And for all of you out there who share our fascination with space and astronomy, keep

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00:19:04,080 --> 00:19:08,240
looking up, keep asking questions, and never lose your sense of wonder.

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00:19:08,240 --> 00:19:12,480
And don't forget to subscribe to Cosmos in a Pod for more mind-expanding journeys through

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00:19:12,480 --> 00:19:13,480
the universe.

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00:19:13,480 --> 00:19:18,000
We've got a whole lineup of exciting episodes planned, covering everything from black holes

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00:19:18,000 --> 00:19:21,920
and distant galaxies to the search for life beyond Earth.

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00:19:21,920 --> 00:19:25,440
And be sure to check out our YouTube channel for stunning visuals and behind-the-scenes

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00:19:25,440 --> 00:19:29,240
content where we're constantly adding new videos and animations that bring the wonders

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00:19:29,240 --> 00:19:32,080
of space to life right before your eyes.

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00:19:32,080 --> 00:19:35,680
Thanks for joining us on this deep dive into Jupiter's Great Red Spot.

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Until next time, keep exploring.

