There have been explorations about the real world possibility of Hulk's gamma-radiation based origin. In "The Science of Superheroes", Lois Grest and Robert Weinberg examined Hulk's powers, explaining the scientific flaws in them. Most notably, they point out that the level of gamma radiation Banner is exposed to at the initial blast would induce radiation sickness and kill him, or if not, create significant cancer risks for Banner, because hard radiation strips cells of their ability to function. They go on to offer up an alternate origin, in which a Hulk might be created by biological experimentation with adrenal glands and GFP. Charles Q. Choi from LiveScience.com further explains that unlike the Hulk, gamma rays are not green; existing as they do beyond the visible spectrum, gamma rays have no color at all that we can describe. He also explains that gamma rays are so powerful (the most powerful form of electromagnetic radiation and 10,000 times more powerful than visible light) that they can even convert energy into matter – a possible explanation for the increased mass that Bruce Banner takes on during transformations. "Just as the Incredible Hulk 'is the strongest one there is,' as he says himself, so too are gamma-ray bursts the most powerful explosions known."