MARK GARLICK / SCIENCE PHOTO LIBRARY MARK GARLICK / SCIENCE PHOTO LIBRARY
Origin of Earth. Conceptual artwork of the origin of the Earth, showing it spilling from an egg beneath a nebula. Nebulae are the birthplaces of stars, which are formed as the gas in the nebula coalesces under its own gravity, becoming denser and hotter until nuclear reactions begin. Planets form from the material left over from star formation.
Model release not required. Property release not required.