Figure caption, Each region of the electromagnetic (EM) spectrum has a range of wavelengths associated with it. Radio waves have the longest wavelengths and gamma rays have the shortest wavelengths.

There's lots to discover in the electromagnetic spectrum. Here's a tour that begins with radio waves and takes you through microwaves, infrared radiation, light, ultraviolet radiation, and X-rays.

Light with the longest wavelengths – millimetres, metres or even kilometres across – takes the form of radio waves. On the other side of the spectrum, light with wavelengths slightly shorter ...

We invite you to take this self-guided tour, which covers the spectrum from radio waves to gamma rays.

Astronomers explain why the highly-anticipated "guest star" has not appeared in the night sky yet.

Government agencies divide the radio frequency spectrum into frequency bands that are authorized for specific uses defined geographic regions (such as a city). In the United States, the responsibility ...

The electromagnetic spectrum consists of a group of radiations that all travel at the speed of light (\(3\times 10^{8},m\,s^{-1}\)). In the middle of the EM spectrum is the visible spectrum ...

The Centre on Wednesday said it will ensure a level-playing field for telecom service providers in spectrum assignment to satellite-based communications. Minister of State for Communications, Dr ...

The answer to the myserious radio signal found by astronomers may lie with two dwarf stars locked together in a dance of ...