Cold fire threads Orion's Belt

Bad Astronomy
By Phil Plait
May 2, 2012 3:00 PMNov 20, 2019 1:38 AM

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Orion is the gift that keeps on giving. When you look toward that constellation in the sky, you're facing a region of massive ongoing star formation. A sprawling cloud of gas and dust occupies Orion's midsection, most of it thick and opaque. Some of it is illuminated by stars embedded inside, and some by the reflected light of nearby stars. M78 is a section of the cloud just above Orion's Belt that's evidence of the latter. But even then, much of the dust is dark to our eyes. But if you look in the far, far infrared, where warm material glows, a different -- and spectacular -- view appears:

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