Hyperspectral imaging (HSI), or imaging spectroscopy, captures detailed information across the electromagnetic spectrum by ...

yet it makes up just a small portion of the electromagnetic spectrum. We invite you to take this self-guided tour, which covers the spectrum from radio waves to gamma rays.

Astronomers have identified a supermassive black hole located on the outskirts of a galaxy 600 million light-years from Earth ...

but visible light is only a small portion of the electromagnetic spectrum, which contains a broad range of wavelengths. People have known about electricity and magnetism since ancient times ...

As with previous cellular technologies, 5G networks rely on signals carried by radio waves - part of the electromagnetic spectrum - transmitted between an antenna or mast and your phone.