The mystery about the icy space rocks has puzzled the scientists for years. Earlier researches have shown that comets seem to have 10 times less nitrogen than they expected and this has always increased the curiosity for the missing element. A group of researchers from the University of Grenoble in France and other institutes have designed fake comets in a lab and assumed a type of compositions to understand what compounds were sucking up the light. The research revealed that the absorption effect was created by ammonium salts along the surface of the comet. Scientists believe the finding could help illustrate how nitrogen may have been carried to Earth by comets and how the gas giants in our solar system created.
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