Enceladus’ Jets: the Farther They Are, the Harder They Spray

A crowning achievement of the Cassini mission to Saturn is the discovery of water vapor jets spraying out from Enceladus‘ southern pole. First witnessed by the spacecraft in 2005, these icy geysers propelled the little 320-mile-wide moon into the scientific spotlight. After 22 flybys of Enceladus during its nearly twelve years in orbit around Saturn, Cassini has gathered enough data to determine…

Cassini Has Made Its Last Pass by Enceladus. Here Are the Pictures.

After nearly eleven and a half years in orbit around Saturn the Cassini spacecraft has made its last-ever targeted flyby of Enceladus, the 320-mile-wide moon of Saturn that has intrigued scientists and the public alike with its active water ice geysers for more than a decade since their discovery. On Saturday Dec. 19, 2015, Cassini performed its E-22…

Pics Are In from Cassini’s Flyby Through Enceladus’ Plumes!

On Wed. Oct. 28 Cassini performed its lowest-altitude dive yet through the icy plumes of Enceladus, coming just 30 miles from the moon’s surface — that’s only about 6 times higher than a commercial airliner at cruising altitude. But, traveling over 19,000 mph relative to Enceladus (which is 38 times faster than a jet plane!) the pass was…

Icy Enceladus Shines in the Latest Images from Cassini

On Wednesday, Oct. 14 2015, Cassini performed its scheduled “E-20” close pass of Enceladus, a 320-mile-wide moon of Saturn that is now famous for the organics-laden ice geysers that fire from cracks in its southern crust. E-20 is the first of a series of three flybys to be performed before the end of 2015, specifically timed to…

Icy Tendrils in Saturn’s E Ring Traced Back to Enceladus

As the ice-encrusted moon Enceladus makes it way along its orbit around Saturn it gets repeatedly squeezed by the giant planet’s gravity, like a frozen stress ball with water-filled insides. This constant squeezing and relaxing generates friction heat in the moon’s crust, which could be responsible for keeping some of its internal water liquid and spraying…

Suspected Hydrothermal Activity on Enceladus Raises Hopes for Life

Ever since their discovery by the Cassini spacecraft in 2005, the plumes of icy particles that are being fired into space from deep gashes along the southern pole of Saturn’s moon Enceladus have intrigued planetary scientists and astronomers immensely. Here we have a world in our own Solar System, relatively not so far away, where…

Cassini Uncovers Even More Evidence for Enceladus’ Hidden Ocean

It’s been suspected for nearly a decade that Saturn’s 315-mile-wide moon Enceladus harbors a hidden ocean beneath its frozen crust, thanks to observations by the Cassini spacecraft of icy plumes spraying from its southern pole, and now scientists have even more evidence supporting its existence: Doppler measurements of the moon’s gravity taken during Cassini’s flybys show variations…

Jupiter’s Moon Europa Has Jets Like Enceladus!

“Attempt no landings there?” Ok, FINE. We’ll just fly a spacecraft through Europa’s newly-discovered plumes and get a taste of its underground ocean that way! Because it has them, and so we could. This was the big news from NASA, ESA, and Hubble researchers today: Jupiter’s ice-covered moon Europa (yes, the one from 2010) has…

Enceladus is Spraying Its Salty Sea Out Into Space

Thanks to Cassini we’ve known about the jets of icy brine spraying from the south pole of Saturn’s moon Enceladus for about 8 years now, but this week it was revealed at the 44th Lunar and Planetary Science Conference outside Houston, Texas that Enceladus’ jets very likely reach all the way down to the sea — a salty…

Enceladus Sprays Its Secrets To Cassini

Enceladus, Saturn’s 318-mile-wide moon that’s become famous for its ice-spraying southern jets, is on astronomers’ short list of places in our own solar system where extraterrestrial life could be hiding — and on March 27, NASA’s Cassini spacecraft was in just the right place to try and sniff it out. Why does Cassini team director…

Pretty as a Picture: Enceladus and Titan

Little Enceladus and enormous Titan are seen on either side of Saturn’s rings in this image, a color-composite I made from raw images acquired by Cassini on March 12, 2012. Read more here.

Latest Images of Enceladus

On Saturday, Oct. 1, the Cassini spacecraft performed another flyby of Saturn’s moon Enceladus. Passing by at a distance of only 62 miles (99 km) Cassini took some fantastic images of the 318-mile-wide moon — most notably of its signature plumes of water ice spraying from fissures along its south pole!