SAO/NASA ADS: ADS Home Page
Abstracts on astrophysics, astronomy, instrumentation, geophysics, and physics. ... Harvard-Smithsonian Center for Astrophysics ...
http://adsabs.harvard.edu/
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SAO/NASA ADS: ADS Home Page
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arXiv.org e-Print archive
Automated collection of research articles on physics, mathematics, nonlinear sciences, computer science, and quantitative biology. Hosted by Cornell University, Ithaca.
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ScienceWorld
Comprehensive online encyclopedias of astronomy, math, physics, scientific biographies, and scientific books, with many equations and formulas.
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NASA - Science@NASA
Research news from NASA.
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Physics and Astronomy - PhysLink.com
Find physics news, reference materials, societies, journals, new theories, jokes, cartoons, and more.
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NASA Science - Science Mission Directorate
Research news from NASA.
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NASA - Home
There's a problem with your browser or settings. ... Follow this link to skip to the main content. NASA - National Aeronautics and Space Administration ...
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Imagine The Universe! Home Page
Dedicated to discussion about the universe, how it is evolving, and the kinds of objects and phenomena it contains. A service of NASA's High-Energy Astrophysics ...
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Center for Astrophysics
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Near-Earth Object Program
Information about near-earth object studies including asteroid orbits, images, updates, potentially hazardous asteroids (PHA), and more.
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