* Visible light: The light we can see with our eyes. Stars emit visible light.
* Infrared radiation: Heat radiation. Planets and dust clouds emit infrared radiation.
* Ultraviolet radiation: Radiation with higher energy than visible light. Stars emit ultraviolet radiation.
* X-rays: High-energy radiation. Supernovae, black holes, and active galactic nuclei emit x-rays.
* Gamma rays: The most energetic form of electromagnetic radiation. Supernovae, active galactic nuclei, and neutron stars emit gamma rays.
* Radio waves: Low-energy radiation. Planets, stars, and galaxies emit radio waves.
These are just a few examples. Space is filled with electromagnetic radiation from a wide range of sources, giving us clues about the universe's composition, processes, and evolution.
