- Typically large in size, with Jupiter and Saturn being the largest in our solar system

- Are primarily made up of hydrogen and helium gases, with no solid surface

- Have more extensive and thicker atmospheres than Terran planets

- Have rocky cores hidden deep beneath their thick atmospheres

- Possess multiple layers of clouds, including ammonia and water vapor

- Have strong magnetic fields and emit intense amounts of radiation due to their rapid rotation

- Have numerous moons in their orbit, most notably Jupiter's Galilean moons (Io, Europa, Ganymede, and Callisto)

- Are classified into two categories: gas giants (Jupiter and Saturn) and ice giants (Uranus and Neptune) based on their composition and temperature differences.

- Contain massive amounts of liquid under their gaseous layers, often referred to as "metallic hydrogen" or "molecular hydrogen"

Terran planets:

- Typically smaller and denser compared to Jovian planets

- Are predominantly made up of solid rocks and metals

- Have rocky surfaces with varied landscapes, such as mountains, canyons, volcanoes, etc.

- Possess thin atmospheres compared to Jovian planets

- Have a clear separation between their solid surfaces and their atmospheres

- Have diverse surface temperatures, ranging from very hot to freezing

- Exhibit smaller magnetic fields and radiation levels

- Have significantly fewer moons in their orbit compared to Jovian planets

- Have more variations in their surface features, including the presence of water, continental drift, and plate tectonics

- Include Mercury, Venus, Earth, and Mars in our solar system