Scientists found out that Mercury still contracts

Researchers were given the "wrinkle" help on a planet surface. Planetologists know long ago that Mercury contracted throughout billions years. In spite of the fact that Mercury – the planet closest to the Sun, its internal part cools down because of leakage of heat. It means that the stone (and in it and metal) of which the planet consists, has to decrease in volume. However it is not known, in what degree the planet is still reduced today – and if yes, that as long it proceeds. New research sheds light on this history. If the internal part of Mercury contracts, on it...