Originally posted by: DrPizza
Originally posted by: CSMR
Originally posted by: sao123
thats right all four of them (jupiter, saturn, uranus, neptune), the entire surface is a liquid ocean of hydrogen, nitrogen, ammonia and similar compunds. so we wont be landing there anytime soon. No ice to even stand on.
No problem, just bring a boat
LMAO right now
I also didn't realize it was "entire" as in 100%
Any source for this 100% of the surface?
What's the density of liquid methane, mitrogen, ammonia, etc.? Anything out there that could float on it?
Source:
Universe, the definitive visual guide. Martin Rees. ISBN 0-7566-1364-7
Jupiter is composed of 89.8% hydrogen, 10.1% helium, and .1% of trace methane and ammonia. Jupiters atmosphere is gaseous hydrogen and helium at a temperature of
-166F, 4350 miles thick. At that point the temperature has risen to 3600F and a surface of liquid hydrogen is found. At 8700 miles deep (including the 4350 of atmosphere) the temperature is now 9000F, the hydrogen has compacted to a molten metallic state. Finally about 37,260 miles deep is found a solid hydrogen metallic core. Unknown temperature.
Saturn has a similar makeup of about 96.5% hydrogen and 3.5% helium. Atmosphere, outer layer of liquid hydrogen, inner molten metallic hydrogen, and a solid core. Saturn is the least dense of all the gas giants and the entire planet could float on an ocean of water.
Uranus is composed of 82.5% hydrogen, 15.2% helium, and 2.3% methane and ammonia. Hydrogen and helium atmosphere. Liquid methan and ammonia surface.
Inner layer of ammonia and methane ices. Solid ice core.
Neptune is composed of 79% hydrogen, 18% helium, and 3% methane and ammonia.
Hydrogen helium and methane atmosphere. Water, methane and ammonia surface (some liquid some ice). The only planet with a potential ice surface. Ice and rock core.
Uranus and Neptune have no molten inner layers like jupiter and saturn, they are liquid and ices of ammonia and methane.
Given that the densities of liquid ammonia and methat are about 1/2 of liquid water, I doubt we have anything that would float on these planets. Except maybe a styrofoam ball.