A witch appears to be screaming out into space in this new image of the Witch Head nebula from NASA's Wide-Field Infrared Survey Explorer, or WISE, released on Halloween (Oct. 31, 2013). [Read the ...
A nebula is a luminescent giant cloud of dust and gas in space that could be from a supernova or could be a star-forming region. The "dumbbell nebula," also known as Messier 27, is what astronomers ...
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