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Exploring the Spectrum: What Telescopes Reveal About Space

Dive into the electromagnetic spectrum and discover how different wavelengths inform our understanding of space. Learn how radio waves differ from sound, the properties of electromagnetic waves, and the capabilities of optical and radio telescopes. Explore the diverse views of common objects in the cosmos, including the visible and radio sky. Take a tour of the Orion region through different wavelengths of light, from optical to infrared and radio.

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Exploring the Spectrum: What Telescopes Reveal About Space

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  1. Using All of Our Tools What the Various Parts of the Spectrum Tell us About Space

  2. Radio Waves are NOT sound! They are part of the electromagnetic spectrum. NRAO/AUI/NSF

  3. Electromagnetic Waves traveling, mass-less packet of energy travels at the speed of light (by definition) all radiation travels at this speed, regardless of whether is carries a lot of energy or only a little Animation from Nick Strobel’s Astronomy Notes (www.astronomynotes.com) NRAO/AUI/NSF

  4. A light wave is a light wave, no matter how long... NRAO/AUI/NSF

  5. Different Views of Common Objects NRAO/AUI/NSF

  6. Optical and Radio telescopes can be used from the ground! • Infrared, X-ray and Gamma ray telescopes must work beyond the ionosphere. • The ionosphere filters out many of the waves NRAO/AUI/NSF

  7. Radio Telescope Optical Telescope Nowadays, there are more similarities between optical and radio telescopes than ever before. NRAO/AUI/NSF

  8. The Visible Sky, Sagittarius Region 9 NRAO/AUI/NSF

  9. The Radio Sky NRAO/AUI/NSF 10

  10. NRAO/AUI/NSF 11

  11. Tour of Orion The tour presents five images of Orion. All show the same area of the sky but were made with telescopes working at different wavelengths of light (optical, infrared, and three radio wavelengths).

  12. Optical view

  13. Dust in the infrared Image created By IRAS

  14. Molecular hydrogen Radio telescope

  15. Ionized hydrogen

  16. Atomic Hydrogen

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