# Observing with Light Waves

Explain how the electromagnetic spectrum is the primary tool of modern astronomy — different wavelengths (radio, infrared, visible, ultraviolet, X-ray, gamma-ray) reveal different phenomena, why some telescopes must be in space, and what specific discoveries each wavelength range has enabled (e.g. CMB in microwave, black hole jets in X-ray, cold gas clouds in radio)

Builds on: Why the Sun Looks Brightest (hard, https://ai.page/c/why-the-sun-looks-brightest/en.md)

Concept id: observing-with-light-waves. Subject: science. Licence: CC BY-SA 4.0.

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