These lecture notes describe the general properties of our planetary system and those around other stars. The site also illustrates how these properties are explained in models for star formation.
This press report from the University of Chicago provides information about research on the Chicxulub asteroid. Scientists present new results about the formation of spherules at the Cretaceous-Paleogene boundary in...
This site is part of Visible Earth, which is hosted by the National Aeronautics and Space Administration (NASA), and contains a searchable directory of images, visualizations, and animations of the Earth. The...
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