Using Gamma Rays, Scientists Map Out 21 New Constellations

Gamma-Ray Sky
For countless years, humans have gazed up at the sky and made sense of the stars by finding shapes in them — constellations of heroes, animals, and well-worn tales. Now, to celebrate the 10th mission year of NASA’s Fermi Gamma-ray Space Telescope, scientists have used the telescope to develop a new set of constellations that correspond with gamma-ray emissions.Gamma rays are the most powerful in the electromagnetic spectrum, and they're typically only produced by very p