Solar System Debris
 
 
Close up formation of a terrestrial planet See also
View from the surface of a protoplanet in formation
Formation of the rocky planets
Formation of the rocky planets
Protoplanet (2007)  This image is very similar to Fiery Birth andEmergence of the Terrestrials, showing a primitive terrestrial planet, or protoplanet, in the process of formation, 4500 million years ago.