While it may sound like science fiction, Earth indeed has more than one moon, although temporary ones. These mini-moons are usually small asteroids or space debris caught by Earth's gravitational pull. Their stay is brief as they eventually escape back into space or collide with our planet. Astronomers are working on techniques to detect and study these temporary companions to learn more about our celestial dance with passing objects. And that's just one cool fact about the Earth's natural satellite.