The Dumbbell Nebula in Hydrogen and Oxygen
The first hint of what will become of our sun was discovered inadvertently in 1764. At that time, Charles Messier was compiling a list of "annoying" diffuse objects not to be confused with "interesting" comets. The 27th object on Messier's list, now known as M27 or the Dumbbell Nebula, is a planetary nebula.
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https://www.nasa.gov/image-detail/dumbbell-nebula-hydrogen-oxygen/
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