The only thing that differentiates one type of electromagnetic radiation from any other is the energy carried by its photons. There's lots to discover in the electromagnetic spectrum. Here's a ...

Electromagnetic radiation is carried by photons, massless particles that travel at the speed of light (300,000 kilometers per second in a vacuum). Every photon is characterized by wavelength (the ...

Astronomers have now detected photons from V4641 Sagittarii ... This creates a flash of light called Cherenkov radiation, which is essentially the electromagnetic version of a sonic boom.