Solar System
A Ghostly “Ladder” in Saturn’s F Ring
Saturn's F ring is certainly a curious structure. Orbiting the giant planet 82,000 kilometers above its equatorial cloud tops, the…
Mysterious and Well-Preserved Oort Cloud Object Heading Into Our Solar System
What if we could journey to the outer edge of the Solar System – beyond the familiar rocky planets and…
How Many Planets are in the Solar System?
I’m just going to warn you, this is a controversial topic. Some people get pretty grumpy when you ask: how…
Saturn’s Little Wavemaking Moon
Captured on January 15, this narrow-angle Cassini image shows an outer portion of Saturn's A ring on the left and…
Cosmic C.S.I.: Searching for the Origins of the Solar System in Two Grains of Sand
"The total number of stars in the Universe is larger than all the grains of sand on all the beaches…
Cassini Says “Senkyo Very Much”
In this image acquired on January 5, Cassini's near-infrared vision pierced Titan's opaque clouds to get a glimpse of the…
Hydrogen Peroxide Could Feed Life on Europa
According to research by NASA astronomers using the next-generation optics of the 10-meter Keck II telescope, Jupiter's ice-encrusted moon Europa…
MESSENGER Sees a Smoother Side of Mercury
During its two years in orbit around Mercury -- as well as several more years performing flybys -- the MESSENGER…
Enceladus’ Jets Reach All the Way to its Sea
Thanks to the Cassini mission we've known about the jets of icy brine spraying from the south pole of Saturn's…
Saturn to Shed its Spooky Spokes for Summer
As Saturn steadily moves along its 29.7-year-long orbit toward summertime in its northern hemisphere NASA's Cassini spacecraft is along for…