of that ratio, or 62 billion times. Thetemperatureof the Sun’s surface is so high that nosolidorliquidcan exist there; theconstituentmaterials are predominantly gaseousatoms, with a very small number ofmolecules. As a result, there is no fixed surface. The surface viewed from Earth, called...
volcanic eruption on IoTwo images showing the eruption, over a five-month period, of the volcanic crater Pillan Patera on Jupiter's satellite Io. Volcanic eruptions are not limited to Earth. Jupiter’s moonIois subject to strong gravitational forces due to Jupiter’s mass as well as interacti...