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The spectrum consists of radiation such as gamma rays, x-rays, ultraviolet, visible, infrared and radio.

Electromagnetic radiation travels in waves, just like waves in an ocean.

If a star has three times or more the mass of the Sun and collapses, it can form a black hole.Supernovas are some of the most dramatic events in the cosmos.These titanic events send shock waves rumbling through space and create giant bubbles of gas that have been superheated to millions of degrees.This mysterious radiation had the ability to pass through many materials that absorb visible light.X-rays also have the ability to knock electrons loose from atoms.

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