Comment on Earth-like moon by JustV23

Xlydrs's avatar
I wonder if an earth like MOON is possible. And would it orbit a gas giant? 0_o
Nevertheless, it would probably look as amazing as this pic!
LtCWest's avatar
The issue is that gas giants with powerfull EM fields like Jupiter have huge Van Allen radiation belts. Chances are a moon like this could never bear life (unless maybe under a thick sheet of ice) because its getting sterilised every single day.
For reference, in Earths VA belts you will die within one weeks worth of exposure. At Jupiter, you'd die within the hour.
Chiletrek's avatar
Hello:
 Well, not every planet can produce a strong magnetic field like our planet can (like Mars cannot), so if those planets happen to be moons of gas giants, then the giant's magnetic field can provide ore than enough protection, maybe even better than Earth's own magnetic field.

 Also, another example would be Tirol, orbiting th gas giant Fantoma, from Robotech.
Jamesdean1987's avatar
It's strongly possible. Like in the movie Avatar, Pandora orbits a gas giant planet. Scientists believe that some Earth-like planets can orbit Gas Giant planets.