Most planets in our solar system are tilted. Earth’s 23-degree tilt gives us our seasons, while Mars sits at just over 25 degrees. Then you have the overachievers: Uranus is essentially lying on its ...

After studying thousands of computer simulations of the solar system, researchers at Rice University and the Planetary Science Institute think there’s a 40% chance an elusive “Planet Nine” or “Planet ...

Astronomers may have demoted Pluto from full-fledged planet to dwarf status, but evidence suggests the solar system may still host a mysterious ninth planet — far beyond Neptune, cloaked in shadow and ...

Neptune is the solar system's most distant planet, a cold, blue ice giant sitting nearly 30 times further from the sun than Earth. At that remote distance, temperatures plunge to nearly minus 200 ...

Neptune retrograde will occur from July 2 until Dec. 7. Read on for a deeper meaning behind the cosmic event NASA In astrology, the planet Neptune is said to oversee our dreams, creativity, illusions, ...

Despite the lack of a dedicated mission to the planet, scientists have learned plenty through ground observations and space telescopes Shi En Kim - Reporter A photo of Neptune, taken by the Voyager 2 ...