How comes that both the gas giants and inner rocky planets feature a magnetic field despite being built so differently? I assume the gas giants don't have an interior iron core or smth like that

#astronomy #gasGiants #planet #magnetism #eli5

The Solar System - Outer Planets, Gas Giants

And then into the darkness of space. That's where the gas giants live. These are four more planets: Jupiter, Saturn, Uranus, and Neptune. Jupiter and Saturn are composed of hydrogen and helium. Neptune and Uranus, however, are made of ice. These two planets, Neptune and Uranus, are also considered ice giants.

#solarsystem #gasgiants #icegiants #distantplanets #space #uranus #neptune #saturn #jupiter #cold #moons #storms #ice #vortex

Inside the ice giants, a layer exists of familiar rains and snows...and often at a pressure range that wouldn't require spacesuits! Could these planets harbor environments that are shockingly Earth-like?

More thoughts at my #blog: https://adamasnemesis.com/2025/12/14/another-earth-in-the-depths-of-neptune/

This post's featured image is Neptune and Triton seen on departure by Voyager 2.

#worldbuilding #science #astronomy #habitability #planetaryhabitability #icegiants #planetaryscience #gasgiants #atmospheres #oxygen

What Webb Is Teaching Us About Our Solar System

Episode description:  NASA’s James Webb Space Telescope is hard at work answering our biggest questions about the birth…
#NewsBeep #News #Headlines #Asteroids #astronomy #Audio #Callisto #Enceladus #Europa #Exoplanets #Ganymede #GasGiants #Io #JamesWebbSpaceTelescope(JWST) #Jupiter #JupiterMoons #Latvia #LV #Moons #OceanWorlds #Podcasts #SaturnMoons #TheKuiperBelt #TheSolarSystem #Uranus
https://www.newsbeep.com/140954/

Around Sirius A: helium-dominated gas giants with featureless white haze...and secrets that only peek out when the meteors light up the sky?

Read more at my #blog: https://www.adamasnemesis.com/2025/06/26/worlds-of-white/

This post's feauted image is my very own "Girl gazing at Saturn in sepia from orbit".

#worldbuilding #scifi #sciencefiction #heliumplanets #gasgiants #planets #Sirius

I did not write a word of it, but I did the seminal research before I succumbed to #AutisticBurnout. It is still being cited in #Science articles 36 years later. I can still read & understand it at least. #PlanetaryScience #Exoplanets #Jupiter #CO #CH4 #GasGiants #PlanetaryAtmospheres #RedDwarf.
Bluesky

Bluesky Social
#Saturn's mega-storms challenge planetary formation models
Scientists are reassessing theories of how #gasgiants form after observing that fallout from Saturn's cyclical mega storms can last for centuries. Observations dating as far back as 1876 have shown that visible storms lurk beneath Saturn's normally calm outer atmosphere., leaving long-lasting impacts and raising lots of scientific questions https://www.theregister.com/2023/08/15/saturn_storms_challenges_planet_models/
Saturn's mega-storms challenge planetary formation models

Storms on Saturn last for hundreds of years, leaving long-lasting impacts and raising lots of scientific questions

The Register
<i>Oscillations in internal fluid layers of planets, moons and stars</i>

Oscillations in internal fluid layers play an important role in the dynamics and evolution of planets, moons and stars. In these objects, the Coriolis force supports the existence of inertial waves, while buoyancy gives rise to internal gravity waves. When a magnetic field is present, magnetic Alfvén waves can also exist. In realistic situations, all these types of motion combine to produce complex oscillations.  While inertial (Rossby) and internal gravity waves were initially described in the context of atmospheric and oceanic science, they are also a long-standing subject of study in the Earth’s liquid core and in the subsurface oceans of icy moons. Inertial waves have also been recently identified in Sun's convective envelope and are cited as an important ingredient in gas giants' dynamics.  This interdisciplinary session aims to bring together scientists from the Earth, Solar, and planetary communities to synergistically consolidate our collective knowledge of these phenomena.

AGU - AGU23
<i>Oscillations in internal fluid layers of planets, moons and stars</i>

Oscillations in internal fluid layers play an important role in the dynamics and evolution of planets, moons and stars. In these objects, the Coriolis force supports the existence of inertial waves, while buoyancy gives rise to internal gravity waves. When a magnetic field is present, magnetic Alfvén waves can also exist. In realistic situations, all these types of motion combine to produce complex oscillations.  While inertial (Rossby) and internal gravity waves were initially described in the context of atmospheric and oceanic science, they are also a long-standing subject of study in the Earth’s liquid core and in the subsurface oceans of icy moons. Inertial waves have also been recently identified in Sun's convective envelope and are cited as an important ingredient in gas giants' dynamics.  This interdisciplinary session aims to bring together scientists from the Earth, Solar, and planetary communities to synergistically consolidate our collective knowledge of these phenomena.

AGU - AGU23
Saturn may have 'failed' as a gas giant

The ringed planet is definitely gaseous, but is it really 'giant?'

Space