gas giants

Jupiter and Saturn

Gas giants are the largest planets in a solar system, composed primarily of hydrogen and helium rather than rock or ice.

In our solar system, Jupiter and Saturn are gas giants—massive spheres with no solid surface, just increasingly dense atmospheres surrounding a possible rocky core.

The term distinguishes them from terrestrial planets like Earth and from ice giants like Uranus and Neptune.

planetary

Jupiter

Largest solar system planet

solar system · orbit · moons · rings · Great Red Spot · Cassini Division · Titan · Ganymede · Callisto · Io

atmospheric

atmosphere

Gaseous layer around planets

vortices · winds · jets · convection · bands · zones · belts · auroras · lightning · pressure

composition

hydrogen

Simplest atomic element

deuterium · layered structure

scale

massive

Extremely large and heavy

gigantic · vast · gravitational pull · escape velocity · diameter · volume · density · radius

exploration

Voyager

NASA interstellar mission name

  • CassiniSaturn mission namesake
  • JunoJupiter's divine consort
  • PioneerAudio-visual equipment manufacturer

Hubble · James Webb · flyby · space probe · NASA · ESA · mission · discovery · observation · telescope

Categories
Opposites
planetary composition

gas giantsterrestrial planets

Solid, dense inner planets

rocky planets · dwarf planets · inner planets · asteroids · planetesimals

Family

gas, gassy, gases, giants, gaseous, gas giant, jovian

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