We cannot see ultraviolet (UV ... They are a form of nuclear radiation. High energy waves such as X-rays and gamma rays are transmitted through body tissues with very little absorption.

Scientists have detected radio signals from hot gas surrounding a supermassive black hole that existed 12.9 billion years ago ...

A black hole is a region of space where gravity is so strong that nothing, not even light, can escape. There are two main ...

Here's a tour that begins with radio waves and takes you through microwaves, infrared radiation, light, ultraviolet radiation, and X-rays. The tour ends with gamma rays, the potentially deadly ...

During the time it takes for its wave to go through one cycle ... at velocities close to the speed of light. Like ultraviolet radiation and X-rays, gamma rays can kill microorganisms and are ...

Ultraviolet waves can cause skin to age prematurely and ... In order to be safe, exposure to ionising radiation needs to be kept as low as possible, especially for people who work with this ...

exposing life to damaging ultraviolet radiation from the sun. According to NASA, many supernovae occur when massive stars run out of fuel, rapidly collapse under their own weight, and then explode ...

Fluorescent bulbs emit varying levels of ultraviolet radiation, so look for those that emit the lowest amounts of UV radiation and try to use light shields and lamp shades whenever possible. If a ...

Electromagnetic radiation is the general term for the more familiar light and radio waves, but also includes gamma rays, x rays, ultraviolet rays, and infrared. All of these forms of electromagnetic ...