It's About Time/AGI

• The Electromagnetic Spectrum, NASA
  This home page provides links to two different topic levels, the second slightly more advanced than the first. The topics for Level One include: Measuring the Electromagnetic Spectrum, A Radio Wave Is Not a Gamma-ray, a Microwave Is Not an X-ray... or Is It?, Why Do We Have to Go to Space to See All of the Electromagnetic Spectrum?. The topics for Level Two include: More about the Electromagnetic Spectrum, and Space Observatories in Different Regions of the EM Spectrum.
• All About Spectra, University of Illinois
  Try another brief overview on electromagnetic spectrum and electromagnetic wave radiation.

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• An Introduction to Radio Astronomy, National Radio Astronomy Observatory
  The NRAO web site offers an education section with various resources including background information and a photo gallery. The Introduction to Radio Astronomy is particular page that offers answers to frequently asked questions about radio astronomy, an article about the VLA and VLBA in New Mexico, and more.
• The Electromagnetic Spectrum
  Offers a good description of important properties of the major regions of the spectrum.

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• Amazing Space, Space Telescope Science Institute
  Explore space with the Hubble Telescope. Learn about what different colors say about stars by clicking on Star Light, Star Bright.

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• Space Science Missions, NASA
  This is a comprehensive list of missions either under study, in development, operating, or past missions.
• Historical Archive, NASA
  This page includes a list of the manned missions from the earliest programs to the most recent.

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• Radar, Studyworld
  Find out how scientists study distant objects using the VLA and radio waves.

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• NRAO Press Releases, National Radio Astronomy Observatory
  Search through a list of different press releases about scientific discoveries and advancements made with a VLA.
• The Very Large Array and the Very Long Baseline Array, National Radio Astronomy Observatory
  Read about the radio telescope arrays that allow scientists to look deep into space

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• Invention of the Microwave
  Learn more about the history and technology of the microwave oven.
• How does an x-ray machine work? Howstuffworks
  Get the answer.
• Does the product emit radiation? Device Advice
  Get some helpful definitions and insights into the pervasive nature of radiation-based technology.

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