A strange gamma ray glow at the center of the Milky Way may finally reveal dark matter’s hidden hand. Credit: Shutterstock Scientists at Johns Hopkins University may have uncovered a promising clue in the long-running effort to confirm the existence of dark matter. For years, astronomers have puzzled over a faint, widespread glow of gamma rays near the Milky Way's center. The source of this mysterious light has remained uncertain, leaving two main possibilities: it could stem from the collision