Ever wonder why the moon looks different every night? Well, that's because of a thing called the lunar cycle. This is a recurring series of eight unique phases of the moon's visibility. The whole ...

Mariner 4, built by JPL in Pasadena, took the images on July 14, 1965. One of the mission's leaders reflects on decades of ...

Spain isn’t just flamenco, paella, and crowded beaches in the summer. It’s a country full of contrast, where every region ...