Rock.
Comment : In a way, maybe, because Neptune may have a rocky core deep inside.
Neptune is made up of: 74% hydrogen, 25% helium and 1% methane.
gasses small water vapor
Hera & Zeus
?
to study neptunes dark spot because it has winds that can reach up to 600 mph winds
Neptunes rings are made up out of gas.
Neptune is made up of mostly gas.
Neptune is made up of: 74% hydrogen, 25% helium and 1% methane.
yes it is made from ground.
Hydrogen, Helium, Methane
gasses small water vapor
hydrogen, methane, helium, ammonia
The Neptunes was created in 1990.
I believe it is thick, as it is made of gas............................
There is no such thing as a "surfaceinterior".
neptunes gravity is high
80% hydrogen, 18.5% helium, and 1.5% methane.