Physics

Free streaming science videos produced by the Department of Energy Office of Scientific and Technical Information

U.S. Department of Energy Office of Scientific and Technical Information (OSTI) is the primary search tool for DOE science, technology, and engineering research.

Official website for NASA. Includes information on NASA missions, image galleries, NASA TV, and educational resources and documents.

Caltech provides free access to the complete Feynman Lectures, the legendary set of physics lectures

An exploration environment for concepts in physics which employs concept maps and other linking strategies to facilitate smooth navigation.

Hosted by the American Institute of Physics. Articles on a variety of physics topics.

NIST (National Institute of Standards & Technology) updates on values and units of measurements

Variety of resources and information on all aspects of physics. Maintained by the American Physics Society.

Help scientists with their research by counting penguins, identifying galaxies, and more. "In citizen science, the public participates voluntarily in the scientific process, addressing real world problems."

TED Talks related to physics.