Future Europa (2000)
Several billion years from now our Sun will become a swollen caricature of itself —
a red giant. When that happens the icy moons around the outer planets will warm up.
Europa, a satellite of Jupiter which at the present possesses a crust of solid ice,
is one such moon that might be thus affected. Its ice might turn into a global ocean
of liquid water — perhaps even with primitive life forms swimming in it. Jupiter
and another of its moons, Io, hang in the sky in this impression.
