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Orion Nebula above a snowy mountain in Sichuan, China. Located 1,500 light-years away, the Orion Nebula, also known as Messier 42 (M42), is the nearest star-forming region to Earth. Due to its brightness and prominent location just below Orion's belt, M42 can be spotted with the naked eye. Photographed on 30 October 2019. (KEYSTONE/SCIENCE PHOTO LIBRARY/JEFF DAI )