These cosmic vibrations, particularly resulting from collisions of supermassive black holes, subtly alter the apparent position of quasars in the sky—the brightest entities in the Universe.

But of the many Green Lanterns throughout the history of the DC Universe, only one man has worn the ring of both Hal Jordan and Guy Gardner in live-action and animation: Nathan Fillion.

With Superman launching in theaters on July 11, Warner Bros. Discovery Global Consumer Products reveals its product collection for the upcoming film. With global availability and more than 100 ...