Because of the high energies involved, giant impacts that occur during planetary accretion cause large degrees of melting. The depth of melting in the target body after each collision determines the ...
Explore 25 Major Events in Earth's 4.5 Billion Year History. Discover pivotal moments from its formation to the rise of life.
More than 4.5 billion years ago, Earth began forming from a blend of dust and gas that was around our young Sun. Eventually, it grew larger and larger until it became similar to the planet we live on ...