Infrared (IR; sometimes called infrared light) is electromagnetic radiation (EMR) with wavelengths longer than that of visible light but shorter than microwaves.

Dec 18, 2025 · Infrared radiation, that portion of the electromagnetic spectrum that extends from the long wavelength, or red, end of the visible-light range to the microwave range. Invisible to …

Mar 19, 2025 · Infrared light, also called infrared radiation or IR waves, is a type of electromagnetic radiation with wavelengths longer than visible light but shorter than …

Aug 10, 2016 · Infrared waves have longer wavelengths than visible light and can pass through dense regions of gas and dust in space with less scattering and absorption. Thus, infrared …

Nov 26, 2025 · Infrared (IR) radiation is a form of energy that is invisible to the human eye. It is an electromagnetic wave intimately linked with the sensation of heat, making it a primary …

Feb 27, 2019 · Infrared radiation (IR), or infrared light, is a type of radiant energy that's invisible to human eyes but that we can feel as heat. All objects in the universe emit some level of IR...

Jan 8, 2026 · Learn what infrared light is, its types, uses in science and medicine, and how at-home infrared light therapy can improve health and wellness.

Dec 3, 2025 · Infrared radiation is a type of electromagnetic wave that has a frequency lower than visible light but higher than microwaves. It is also known as heat radiation because warm …

Infrared radiation (IR) is a type of radiant energy, with longer wavelengths than the visible light humans can see, but shorter wavelengths than radio waves. Its range extends from fairly small …

Jun 1, 2023 · Infrared radiation (IR), sometimes referred to simply as infrared, is a region of the electromagnetic radiation spectrum where wavelengths range from about 700 nanometers …