Watch an animation of a black hole shooting jets of particles through a "collapsing star at nearly the speed of light" and emit "x-rays and gamma rays (magenta)," according to NASA's Goddard Space ...

"Gamma ray lasers could become a reality," Sahai said. "We could get imaging of tissue down to not just the nucleus of cells but down to the nucleus of the underlying atoms.

Other potential research avenues are diffuse gamma-ray emission, gamma ray emission from large structures such as the Fermi bubbles, and molecular clouds, or extra galactic phenomena like gamma-ray ...