Fascinating and scary right..
Jupiter is a giant gas planet, wonder what would happen if a craft would attempt to land on it. Would it fall straight into it's core if the planet has no surface?
god damn space and planets are scary.
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Some Space Pictures from my DA:
Slingshot
Gas Giant with Dust Rings
Red Giant with Satellites
Moon Conjunction
Red Seas
Mystic Planet
Space Port
Drak
Intertropical
Ruira
Total Solar Eclipse
Planet Crash
Naptik
Earthlike Planet
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My Shoujo Manga Recommendation List
(These are the ones that I'm currently reading or just completed reading recently...)
1. The completed age-gap romance series:
Love So Life
Takane & Hana
Living No Matsunaga-san
Tsubaki-Chou Lonely Planet
2. On-going doki-doki series:
Museru Kurai no Ai o Ageru (Choking On Love)
Unmei no Hito ni Deau Hanashi (You are the One I Am Destined to Fall In Love)
Hikaeme ni Itte mo, Kore wa Ai (To Say the Least, This Is Love)
Na no ni, Chigira-kun ga Amasugiru (And Yet, You Are So Sweet)
Hananoi-kun to Koi no Yamai (A Condition Called Love)
Moekare wa Orenji-iro (My Boyfriend in Orange)
3. Yandere boyfriend series:
Hotaru no Yomeiri (Firefly Marriage)
Yakuza Fiancé: Raise wa Tanin ga Ii
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please please please PLEASE share more on your Thoughts about gas giants!! i'd love to learn in a way that doesnt leave me baffled and half my brain leaking from my ears! you explained things so well in the psyche post and also i think things are generally more fun to learn from someone who is Excited To Share than from Published Research Papers where everything has been dried out For Professional Reasons- understandably so, mind, but i am not In The Field and dont know the terms lol
Okay it's taken me forever to get back to this but I AM SO GLAD YOU ASKED.
Like other planets, it all starts with a disk made of gas and dust orbiting an infant star, called a protoplanetary disk. Like these in the Orion Nebula, discovered by the Hubble!
To form terrestrial planets (rocky planets with relatively thin atmospheres like Mercury, Venus, Earth, and Mars), the gas in the protoplanetary disk coalesces to form hundreds and hundreds of rocky bodies called planetesimals, about a kilometer across. These planetesimals collide, and form dozens of protoplanets about the size of the moon. The protoplanets then collide as well, and stabilize to form the solar system as we know it today.
But, in the case of gas giants, colliding protoplanets don't form fully-finished planets. Instead, they form a core, or a seed.
We think the only thing that determines whether a planet will be terrestrial or a gas giant is simply how far away from the sun it forms - that's it. As a new sun warms its evolving solar system, it heats up the material in the protoplanetary disk. Close to the sun, the disk gets hotter, and things like water and other ices melt and evaporate into gas, making them difficult for the protoplanets to gravitationally capture. However, further away, the icy compounds stay cold enough to remain solid and coalesce along with rocky particles.
That boundary in the solar system - where ices evaporate to gas on the sunward side, and remain solid on the other - is called the "Frost Line". In our solar system, the Frost Line is right between Mars and Jupiter.
The protoplanets that form past the Frost Line turn into gas giant seeds, and are able to (kinda literally) snowball, picking up both rocky and icy material. With all that solid ice available, they grow far larger and far faster than planets in the inner solar system, and their gravity gets stronger and stronger. More gravity causes them to collect even MORE material until they're heavy enough to capture extremely lightweight elements like hydrogen and helium. Which, of course, makes them get even bigger and even heavier! Runaway growth!
But weirdly, as we study more exoplanets (planets that orbit stars other than our sun), we keep finding these huge gas giants incredibly close to their stars! Like, even closer than Mercury is to ours, which is insane. These "Hot Jupiters" break so many rules - gas giants "should" only be able to form where ice stays frozen, but here they are up close and personal with their stars, like this artist's concept!
It's possible that these planets are in the process of migrating closer to their stars, and we're managing to see them before they evaporate, but we just! Keep! Finding them!
One of my favorite parts of planetary science is how much we still have to learn. We'll think we have a pretty good idea of how things work out there, and then suddenly we'll find something that we can't explain. And there's an entire universe of weird shit - we've barely begun to scratch the surface!
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