At high altitudes, Neptune's atmosphere is 80% hydrogen and 19% helium.
The Neptunes was created in 1990.
yes it is
Yes, they are very similar.
neptunes gravity is high
Jupiter's has a think atmospehere.
No... they're far too small to support an atmosphere.
hydrogen and helium
It was discovered in 1846.
gas
Hera & Zeus
triton
?