Scientifically speaking, X-radiation (composed of X-rays) is a form of electromagnetic radiation. They are shorter in wavelength than UV rays and longer than gamma rays. X-rays with photon energies above 5-10 keV (below 0.2-0.1 nm wavelength), are called hard X-rays, while those with lower energy are called soft X-rays. Continue reading to see ten unbelievable (yet real) x-rays that might shock you.

The distinction between X-rays and gamma rays is not universal. One often sees the two types of radiation separated by their origin: X-rays are emitted by electrons, while gamma rays are emitted by the atomic nucleus. An alternative method for distinguishing between X- and gamma radiation is on the basis of wavelength, with radiation shorter than some arbitrary wavelength, such as 10−11 m, defined as gamma rays.