Astrophysics 
Disciplines & Professions: Astrophysics
Astrophysics is the part of astronomy that deals principally with the physics of the universe, including luminosity, density, temperature, and the chemical composition of stars, galaxies, and the interstellar medium. (Source: NASA/GSFC - "Imagine the Universe!" Dictionary.)
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Featured Article
Atomic Theory: Testing in Space
Introduction Today, cosmologists believe that 13.7 billion years ago, there was nothing . No universe – no galaxies, no stars, no planets, no light, no space, and no time, nothing at all. Suddenly,...
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Featured Blog Post
Notes from the Astronomy Underground- Astropalooza
According to the tagline in Ridley Scott’s 1979 blockbuster Alien, “In space, no one can hear you scream.” It’s true that sound waves, unlike light, need a medium- some kind of...
Featured Resource
PBS - People & Discoveries
What's the story behind electroshock therapy? Who's responsible for increasing the size of the Universe? What laboratory mishap led to the saving of countless lives? The answers to these questions, plus many more, await you in People and...
