Phenomenon
Polar Ice Cap
A frozen volatile cap at a planet's pole.
Permanent or seasonal ice deposits at planetary poles, made of water and/or carbon dioxide on Earth, Mars and elsewhere.
Overview
Permanent or seasonal ice deposits at planetary poles, made of water and/or carbon dioxide on Earth, Mars and elsewhere.
See also
Elongation
An inner planet's angular distance from the Sun.
Axial Precession
The slow wobble of a planet's rotation axis.
Anti-greenhouse Effect
Atmospheric haze cooling a planet's surface.
Atmospheric Escape
Gas leaking from a planet's atmosphere into space.
Magnetosphere
A planet's magnetic shield against the solar wind.
Volcanism
Eruption of molten rock through a planet's crust.