Clocking Neptune's spin

(PhysOrg.com) -- By tracking atmospheric features on Neptune, a UA planetary scientist has accurately determined the planet's rotation, a feat that had not been previously achieved for any of the gas planets in our solar ...

Largest Ring Around Saturn Discovered

(PhysOrg.com) -- NASA's Spitzer Space Telescope has discovered an enormous ring around Saturn -- by far the largest of the giant planet's many rings.

Saturn's "Yin-Yang" moon Iapetus

Thanks to the Cassini mission, a great many things have been learned about the Saturn system in recent years. In addition to information on Saturn's atmosphere, rotation and its beautiful and extensive ring system, many revelations ...

UK amateur recreates the Great Red Spot's glory days

Maybe it's too soon for a pity party, but the profound changes in the size and prominence of Jupiter's Great Red Spot (GRS) in the past 100 years has me worried. After Saturn's rings, Jupiter's big bloody eye is one of astronomy's ...

What’s up with Iapetus?

Although Saturn's moon Iapetus was first discovered in 1671 by Giovanni Cassini, its behavior was extremely odd. Cassini was able to regularly find the moon when it was to the west of Saturn, but when he waited for it to ...