Gas Giants Weather: Crash Course Kids #43.2 - By Crash Course Kids
Transcript
| 00:09 | I hope you held onto your all weather spacesuit from | |
| 00:11 | last episode because the weather in this episode gets even | |
| 00:15 | weirder , weirder than super powerful dust storms and acid | |
| 00:18 | . Right ? So say goodbye to Earth and the | |
| 00:20 | other rocky planets with solid surfaces . Today is all | |
| 00:23 | about the weather on gas giants . Yeah , Before | |
| 00:30 | we take flight though , let's get a little refresher | |
| 00:32 | on what weather is . We learned a few weeks | |
| 00:34 | ago that weather is the condition of the air or | |
| 00:36 | atmosphere on different parts of the planet , Even though | |
| 00:39 | there's only one atmosphere on earth , the weather isn't | |
| 00:41 | the same everywhere . Obviously , things like temperature , | |
| 00:44 | humidity and wind can change the atmosphere in a certain | |
| 00:47 | area and together they determine what the weather is like | |
| 00:50 | there . But when you're talking about patterns of weather | |
| 00:53 | for a certain area , over long periods of time | |
| 00:55 | , you're talking about that areas , climate and as | |
| 00:58 | we saw firsthand Earth and the rocky planets all have | |
| 01:01 | both weather and climates . Who could forget about the | |
| 01:04 | extremely high and low temperatures on mercury and the heat | |
| 01:07 | and acid rain on venus and the crazy dust storms | |
| 01:10 | on mars , I'm still sweating from our trip to | |
| 01:13 | venus . Good thing . The gas giants are a | |
| 01:15 | little cooler . But how else is the weather different | |
| 01:18 | on the planets farther from the sun ? Let's take | |
| 01:20 | a virtual trip to jupiter , Saturn , uranus and | |
| 01:22 | Neptune to see how extreme their weather is . First | |
| 01:30 | up jupiter , you might want to bring your storm | |
| 01:32 | gear for this planet and be prepared to keep it | |
| 01:35 | on for years and years and then a few more | |
| 01:38 | years . Jupiter is a big planet and its weather | |
| 01:41 | is equally big . It doesn't just have storms , | |
| 01:44 | It has a storm that's because the planet is surrounded | |
| 01:47 | by jet streams or fast moving winds , some of | |
| 01:50 | which are flowing in different directions . When these opposing | |
| 01:53 | air flows meet , they create big , long lasting | |
| 01:56 | swirling storms , storms like the giant red spot , | |
| 01:59 | a storm that's been brewing on the planet since possibly | |
| 02:02 | the 1600s , the 1600s . To make things even | |
| 02:07 | more interesting , the storm shrinks and grows in size | |
| 02:10 | and doesn't always stay in the same spot , although | |
| 02:12 | it always rotate in a counterclockwise direction below the planet's | |
| 02:15 | equator . And you thought storms on earth could get | |
| 02:18 | wild . Let's take cover on our next planet Saturn | |
| 02:21 | . Not that Saturn is less extreme . In fact | |
| 02:23 | , it's awfully windy here . To the winds on | |
| 02:25 | this planet can get up to 1800 kilometers an hour | |
| 02:29 | , The strongest winds on earth only get to about | |
| 02:31 | 400 km an hour . These insanely fast Saturn winds | |
| 02:35 | , combined with heat from the planet's interior , are | |
| 02:37 | actually responsible for the yellow and gold bands we see | |
| 02:40 | in Saturn surrounding atmosphere so cold , but pretty next | |
| 02:44 | stop . Uranus , much like its gas giant neighbors | |
| 02:46 | . It's cold . The temperatures on uranus can dip | |
| 02:49 | as low as negative 220 degrees Celsius . And like | |
| 02:52 | jupiter , it has pretty big storms with winds almost | |
| 02:55 | as strong as those on Saturn . But it has | |
| 02:57 | one weird weather trait . Get this diamond rain . | |
| 03:01 | How does that happen ? Well , the atmosphere on | |
| 03:04 | Uranus has a lot of gas called methane in it | |
| 03:06 | . Methane is a greenhouse gas that explodes when you | |
| 03:09 | light it . The methane on Uranus is put under | |
| 03:11 | lots and lots of pressure , which splits the gas | |
| 03:14 | into carbon and hydrogen . The carbon is then compressed | |
| 03:17 | under all that pressure into diamonds , which are pulled | |
| 03:19 | down or rain down into the planet's core . So | |
| 03:23 | if you ever need to get rich , quick head | |
| 03:24 | down to your knees and check out its diamond stash | |
| 03:27 | . You know , if you have the time to | |
| 03:28 | do a little space travel on to our final gas | |
| 03:31 | giant Neptune . Oh , what a surprise Neptune also | |
| 03:34 | has extremely high winds , powerful storms and cold temperatures | |
| 03:38 | , um , sensing a pattern here . But on | |
| 03:40 | earth , the sunlight drives our weather Neptune gets about | |
| 03:43 | 1000 times less unlike than we do . So how | |
| 03:46 | do we explain its wild weather ? We don't at | |
| 03:49 | least not yet . Scientists aren't sure how this planet | |
| 03:52 | gets the energy for its intense storms and winds , | |
| 03:54 | which is fine by me . I love a good | |
| 03:56 | mystery , especially a good space mystery . So if | |
| 04:04 | you're traveling to the gas giants , brace yourself for | |
| 04:07 | crazy storms and winds on jupiter , Saturn , uranus | |
| 04:10 | and Neptune and maybe bring a big bag to stuff | |
| 04:12 | all those diamonds in . But keep in mind just | |
| 04:15 | like the rocky planets . The gas giants have weather | |
| 04:17 | sort of similar to what we have on Earth . | |
| 04:19 | Just , you know , really amped up . I'm | |
| 04:22 | off to look for a warm wind , free spot | |
| 04:24 | to spend my afternoon and just in case maybe I'll | |
| 04:27 | keep my eyes peeled for diamonds falling from the sky | |
| 04:30 | , you never know . |
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