The ORION Nebula (M42) is a nebula that is faintly visible in the night sky in the constellation Orion. By combining visible and infrared images of the ORION Nebula taken by telescopes, one can realize that it is actually a space where young stars, hot gases, and dark cosmic dust are moving actively. The four brightest stars located at the center of the nebula, known as 'Trapezium,' serve as the main energy source. Most of the slender, linear structures seen within the nebula are shock waves generated when fast-moving material collides with slower-moving gas.
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