why are the outer planets gaseous?
The outer planets are made of ninety-eight percent gas, one-point-four percent ice, and point-six percent rock. Even though there doesn't appear to be much ice or rock it is a large amount compared to those of the inner planets. The jovian planets formed farther from the Sun where there was much ice and rock. The cores accreted rapidly into large clumps of the ice and rock. Eventually, they got so big, they captured a large amount of hydrogen and other gasses from the surrounding nebula with their enormous gravity.