Have you ever wondered how long it takes for each planet to orbit the Sun? From Mercury’s blazing 88-day year to Neptune’s ...

Uranus and Neptune have been called the “ice giants” for decades. But in new research, that nickname might be more a misnomer ...

What if our understanding of Uranus and Neptune's compositions have been wrong, specifically regarding their classifications as "ice giants?" This is what a recent study accepted for publication in ...

A planet's year length depends on its distance from the Sun. Planets closer to the Sun have shorter years. A planet's rotation speed is unrelated to its year length. Planets' orbital speeds vary ...

“We hoped to demonstrate that the mechanism we believe is acting in the gas giants Jupiter and Saturn can explain equatorial ...

Astronomers used a telescope in Hawaii to find a new object on the outer edges of our solar system, helping to fuel evidence of a long-standing theory about Planet Nine, or Planet X. For years, ...