Instead, the image appears to be burned onto the surface of the material itself by a sudden burst of powerful radiation. (premierchristianity.com)
And they say it could open the door to the most powerful radiation in the universe: gamma rays. (sciencedaily.com)
Powerful radiation from supermassive black holes at the center of most large galaxies creates winds that can blow gas out of the galaxies, halting star formation. (sciencemag.org)