Cassini tagged posts

Webb Telescope finds Towering Plume of Water escaping from one of Saturn’s Moons

Courtesy of NASA/ESA/CSA/Alyssa Pagan (STScI)/Geronimo Villanueva (NASA-GSFC) SwRI contributed to new Cycle 1 JWST findings that show the plume of water escaping from Saturn’s moon Enceladus extends 6,000 miles or more than 40 times the moon’s size. In light of this discovery, SwRI’s Dr. Christopher Glein was awarded a NASA JWST Cycle 2 allocation to study the plume as well as the icy surface of Enceladus, to better understand the potential habitability of this ocean world.

Two Southwest Research Institute scientists were part of a James Webb Space Telescope (JWST) team that observed a towering plume of water vapor more than 6,000 miles long—roughly the distance from the U.S. to Japan—spewing from the surface of Saturn’s moon, Enceladus...

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Theoretical Model suggests Saltiness of Enceladus’s Oceans may be right to Sustain Life

Considered heat sources/sinks and salinity/temperature forcings in our Enceladus experiments

A team of researchers at MIT has found via theoretical modeling that the saltiness of the oceans on Saturn’s moon, Enceladus, may be the right level to sustain life. In their paper published in the journal Science Advances, the group describes the factors that went into building their model and the features of Enceladus that were used to measure the saltiness of its oceans.

The combined data from the Cassini and Galileo missions showed that Saturn’s moon Enceladus and Jupiter’s moon Europa both hold potential for satisfying three of the main features believed to be necessary for supporting life on other celestial bodies: they have a source of energy, they have liquid water and they have a mi...

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Possible Detection of Hydrazine on Saturn’s moon Rhea

Possible detection of hydrazine on Saturn’s moon Rhea
Cassini grand finale. Credit: The European Space Agency

In a new report on Science Advances, Mark Elowitz, and a team of scientists in physical sciences, optical physics, planetary science and radiation research in the U.S., U.K., India, and Taiwan, presented the first analysis of far-ultraviolet reflectance spectra of regions on Rhea’s leading and trailing hemispheres—as collected by the Cassini ultraviolet imaging spectrograph during targeted flybys. In this work, they specifically aimed to explain the unidentified broad absorption feature centered near 184 nanometers of the resulting spectra. Using laboratory measurements of the UV spectroscopy of a set of molecules, Elowitz et al...

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NASA’s Cassini reveals New Sculpting in Saturn Rings

A false-color image mosaic shows Daphnis, one of Saturn’s ring-embedded moons, and the waves it kicks up in the Keeler gap. Images collected by Cassini’s close orbits in 2017 are offering new insight into the complex workings of the rings.
Credit: NASA/JPL-Caltech/Space Science Institute

As NASA’s Cassini dove close to Saturn in its final year, the spacecraft provided intricate detail on the workings of Saturn’s complex rings, new analysis shows. Although the mission ended in 2017, science continues to flow from the data collected. A new paper published June 13 in Science describes results from four Cassini instruments taking their closest-ever observations of the main rings.

Findings include fine details of features sculpted by masses embedded within the rings...

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