NASA Discovers Mysterious Green Light That Quickly Disappeared

By  //  September 6, 2019

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This visible-light image of the Fireworks galaxy (NGC 6946) comes from the Digital Sky Survey, and is overlaid with data from NASA’s NuSTAR observatory (in blue and green). (NASA Image)

(FOX NEWS) – NASA has spotted something mysterious in deep space that it can’t quite explain — bright flashes of green and blue spots that appeared and disappeared in a cosmic second.

The NuSTAR X-ray observatory was looking at the Fireworks galaxy (NGC 6946) and saw multiple blobs of blue and green light that appeared and disappeared within weeks, according to a new study published in the Astrophysical Journal.

NASA’s Chandra X-ray Observatory also witnessed the appearance and disappearance of the green blob, known as an ultraluminous X-ray source (ULX), confirming the sighting.

“Ten days is a really short amount of time for such a bright object to appear,” said Hannah Earnshaw, a postdoctoral researcher at Caltech, in a statement. “Usually with NuSTAR, we observe more gradual changes over time, and we don’t often observe a source multiple times in quick succession. In this instance, we were fortunate to catch a source changing extremely quickly, which is very exciting.”

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