Radio waves are a type of electromagnetic radiation with wavelengths longer than infrared light. They are used in various forms of communication, including radio and television broadcasting, radar, and astronomy observations.
5 Must Know Facts For Your Next Test
Radio waves have the longest wavelengths in the electromagnetic spectrum, ranging from about one millimeter to over 100 kilometers.
They are produced by astronomical objects like stars, galaxies, and even planets, making them vital for studying celestial phenomena.
The discovery of cosmic microwave background radiation, a form of radio wave, provided crucial evidence for the Big Bang theory.
Radio telescopes are specifically designed to detect radio waves from space and have contributed to many key discoveries in astronomy.
Unlike visible light, radio waves can penetrate clouds of gas and dust in space, allowing astronomers to see regions that would otherwise be hidden.