This thin layer of air then cools the rain to a temperature below freezing (0 C).

Eventually, the outer layer of the planet cooled to form a solid crust when water began accumulating in the atmosphere.

When the upper layer cooled so its density was greater than the lower layer, the waters mixed (1978-79).

Making a cherpumple can take up to three days, because each layer must cool before they are combined.

After the end of formation due to thermal conduction, the subsurface layer cooled, while the interior heated up.

The layer above cooled under different conditions and fractured horizontally.

This new layer will cool until it is radiating 230 watts from each side, at which point everything is in balance.

When they cool, the thin layer of air around them cools too.

Eventually the outer layers of the star will expand and cool and the star will become a red giant.

The helium-burning layer rapidly expands and therefore cools, which reduces the reaction rate again.