This month’s stargazing agenda brims with planet sightings. We have planet pairings, moon-planet hangouts, and a special treat to end the month: several evenings with all seven of our space neighbors ...

If you do check out Jupiter with a small telescope on Sunday night, you'll see all four Galilean moons, with Ganymede and Io on one side of Jupiter and Europa and Callisto on the other. The ...

Asteroid 9 Metis reaches at opposition at 2 A.M. EDT in the constellation Libra. The 10th-magnitude main-belt world is visible with binoculars or a telescope all night from sunset to sunrise. It ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Keep an eye on the ...

It's been a year full of celestial events, which may have sparked an interest in astronomy for many. When looking up at the night sky, it's easy to get confused about what you're looking at, ...

Dwarf planet Ceres reached its stationary point on August 15th, transitioning from eastward to westward motion relative to background stars, observable in the morning sky. On August 16th, a Last ...

Three secret moons have been discovered lurking out of sight in our outer solar system. These moons were found orbiting the furthest planets in our solar system: one around Uranus, and the other two ...

The International Astronomical Union has confirmed the existence of three currently unnamed moons — one around Uranus and two orbiting Neptune. When you purchase through links on our site, we may earn ...