Editing Hadean Eon (section)

=== The Giants ===
<u>Jupiter</u> and <u>Saturn</u>, the '''gas giants''', likely formed from the accretion of icy and rocky material into large cores, followed by the rapid accumulation of hydrogen and helium gas from the solar nebula. Jupiter, being closer to the Sun and forming in a region of the nebula with a higher density of materials, likely formed first, with Saturn following. This model suggests that once these planets' cores reached a critical mass, they were able to gravitationally attract and retain the surrounding gas, growing rapidly into the gas giants we recognize today.

Uranus and Neptune are often referred to as '''ice giants''' due to their large compositions of volatiles (substances that easily become gas) like water, methane, and ammonia, in addition to hydrogen and helium. These planets formed further from the Sun, where temperatures were low enough for these compounds to condense.