Over the last ten years, OPAL has observed Uranus' northern hemisphere, which has faced the inner solar system for the ...

These evenings, when it is clear, there is (what appears to be) a fairly bright yellow "star" in the southern sky. It is not ...

Saturn will sidle up to the moon this weekend, as the pair make a close approach of each other in the cold night sky.

Encountering Neptune in 1989, NASA’s Voyager mission completed humankind’s first close-up exploration of the four giant outer ...

The rings of Jupiter might not be as spectacular as Saturn’s (whose are?) but they are there. However, one of them may not ...

The Moon will appear nestled between these two gas giants, creating a beautiful triangle that is sure to captivate viewers.

The Hubble Space Telescope has been imaging the outer planets of our solar system for a decade, learning about their strange ...

Saturn, the sixth planet from the Sun, is famous for its stunning rings and massive size. This gas giant has dozens of moons ...

Explore the December sky with our guide to astronomy events, including planetary alignments, moon phases, and asteroid ...