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View from the surface of a protoplanet in formation See also
Close up formation of a terrestrial planet
Formation of the rocky planets
Formation of the rocky planets
Molten Planet (2011)  An illustration showing a primitive terrestrial planet, more properly called a protoplanet, in the process of formation. We view the newborn world from its troubled surface, and a whole host of similar worlds is visible in the sky before us. (Note: image is copyright Kingfisher. Do not ask me to license this image, as I cannot.)