It varies considerably according to its origin and the metamorphoses it has undergone. Today, ice is considered to be that solid crystallised form with the best known laws of deformation in all their complexity. These laws vary with the type of rock ice, and type is its turn a function of other factors. Nevertheless, certain types of ice which can still not be made in the laboratory can still be found in the polar ice-caps. In addition, at the ultra-low temperatures where they are found, transitions are so slow that they cannot be studied experimentally.
Satellites have the possibility of looking both at the Earth and at the Universe.
The detection of water detection has become a common exercise for scientists, even if is sometimes quite difficult. The ultimate aim is to identify water and to locate it both on earth and in the Universe. In Space, some of the effort is directed towards the Moon, Mars, Europa, as well as comets , interstellar clouds, etc. If we examine Earth from space, we discover an abundance of fluid media. If we plot temperature against pressure for the three states of water, and mark the conditions found on the surfaces of all the planets on the diagram, we will see that conditions allowing the presence of water in all its three forms are only found on Earth.