Carl Sagan Quote

Let's go back to the solar nebula... with the temperature declining the farther we get from the Sun.... at different distances from the Sun, different materials will condense out, because they have different vapor pressures or different melting points.... water condenses out roughly at the vicinity of the Earth, whereas silicates condense out closer to the Sun... you have to go out to somewhere near the present distance of Saturn before methane condenses.

The Varieties of Scientific Experience: A Personal View of the Search for God (2006)

Let's go back to the solar nebula... with the temperature declining the farther we get from the Sun.... at different distances from the Sun,...

Let's go back to the solar nebula... with the temperature declining the farther we get from the Sun.... at different distances from the Sun,...

Let's go back to the solar nebula... with the temperature declining the farther we get from the Sun.... at different distances from the Sun,...

Let's go back to the solar nebula... with the temperature declining the farther we get from the Sun.... at different distances from the Sun,...