Two long-standing, unsolved problems in astrophysics are the discrepancies between different ways of calculating mass and energy in the universe. Even though we don’t know how to reconcile the different measurements, these unknown solutions already have cool names (that no doubt add to their popular appeal), dark matter and dark energy. Now it looks like astronomers may have another discrepancy to add to the list: dark light.
“It’s as if you’re in a big, brightly lit room, but you look around and see only a few 40-watt lightbulbs,” says the Carnegie Institution for Science’s Juna Kollmeier, lead author of a new study on the missing light published in The Astrophysical Journal Letters. “Where is all that light coming from? It’s missing from our census.”
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