Radio waves are actually part of radio waves. The earth's atmosphere absorbs most of the electromagnetic waves from the universe, and only visible light and some radio waves can penetrate the atmosphere. Astronomy calls this part of radio waves radio waves. As for why it is so called, it should be to distinguish it from the radio waves used for communication.
Introduction to terms
"Radio wave" is a special term in astronomy. The Chinese translation of astronomical proper nouns from the Chinese Astronomical Terminology Commission, and the copyright of the translation of entries and Chinese and English interpretation data are owned by the Astronomical Terminology Commission.
electromagnetic wave Including countless wavelength , wavelength from short to long includes Gamma ray 、 X-ray 、 ultraviolet rays 、 visible light 、 infrared 、 microwave 、 radio waves Wait, the essential difference between them is the wavelength. Electricity will generate electromagnetic waves. Because matter is composed of atoms, because of the movement of electrons in atoms, all objects will emit electromagnetic waves, and the wavelength depends on the energy.
So there are electromagnetic waves of various wavelengths in the universe.
