This image of a cosmic microwave background, the oldest light in the universe, reveals 13.77-billion-year-old temperature fluctuations (shown as color differences) that correspond to the seeds that ...

With more sightings of the northern lights across the U.S. than usual in recent years, now is an excellent time to make the trek to a Dark Sky Place. Even if you don't see the rainbow of colors ...

Arizona is a hub for space exploration and stargazing, offering a variety of places for those curious about the cosmos. From the Dorrance Planetarium at the Arizona Science Center in Phoenix, where ...