Tracking the rotation speed of solid planets, like the Earth and Mars, is a relatively simple task: Just measure the time it takes for a surface feature to roll into view again. But giant gas planets ...

Using new data from NASA’s Cassini spacecraft, researchers believe they have solved a longstanding mystery of solar system science: the length of a day on Saturn. It’s 10 hours, 33 minutes and 38 ...

We’ve reached a Sat-urning point. Catch Saturn’s rings while you can: The majestic gas planet’s heavenly hula hoops will vanish within six months — but thankfully it’s just an orbital illusion. Come ...

Saturn could be more visible than typical this weekend for Michigan stargazers. Saturn, the sixth planet from the sun in the solar system, will be in opposition Sunday, Sept. 21 — appearing opposite ...

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 ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

Saturn, the giant planet known for its rings, is now being celebrated for having the highest number of moons in the solar system – 145 total, after gaining 62 additional moons in May, according to ...