Georgia Department of Education
Ga Virtual Learning: Earth Origin, Composition, and Structure
In this lesson, you will learn about how the Earth formed as well as the composition and structural layers of the Earth's interior.
Other
Planetary Science Institute: The Origin of the Moon
This resource argues that the moon was formed from debris resulting from an impact to the Earth 4.5 billion years ago.
University of Texas at Austin
The University of Texas Mc Donald Observatory: Comets
Discover interesting facts about comets, an icy time capsule left over from the birth of planets.
Other
Planetary Science Institute: Building Planets at Psi
An article about the Planetary Science Institutes's advanced computer software, which it uses to model the way the solar system may have formed. Includes some insights into the results already obtained.