Ocean discovery on Saturn’s moon Enceladus

This video from the USA says about itself:

NASA: Saturn‘s Moon Enceladus Has Global Ocean

16 September 2015

New research suggests the ocean underneath Saturn‘s moon Enceladus is global in nature.

Saturn‘s moon Enceladus likely contains a global ocean. Scientists working off of images obtained from the Cassini mission have observed a noticeable wobble in Enceladus that they say only makes sense if its inner core is not directly connected to its outer shell. Using over seven years’ worth of images, researchers were able to accurately determine the magnitude of the wobble and arrive at their conclusion.

Enceladus is home to what scientists call “tiger stripes”—large cracks in the moon’s south pole where ice particles, salts, water vapor and organic molecules are expelled in a thin mist. The geologic spraying activity has been observed for some time and was previously thought to be fed by a simple lens-like reservoir—something much smaller than a global ocean. But data culled from the Cassini mission‘s numerous flybys of the icy moon has supported the idea that the reservoir might be much larger. According to NASA, the latest findings independently confirm the global ocean hypothesis.

By Sebastian Murdock in the USA:

Global Ocean Discovered On Saturn’s Moon Enceladus

Pack your swimsuit! But not really.

09/16/2015 11:50 AM EDT

A sprawling global ocean has been discovered on Saturn’s moon Enceladus.

Scientists made the discovery after sifting through seven years worth of images taken by NASA’s Cassini mission. Although scientists were previously aware of a body of water under the moon’s icy crust, NASA announced Tuesday that the body of water expands across the entire moon.

By mapping the position of craters across hundreds of images, the researchers were able to measure a small wobble in the moon as it orbits Saturn. The wobble indicated the presence of a vast body of water between Enceladus’s icy crust and its rocky core, Gizmodo reported.

“If the surface and core were rigidly connected, the core would provide so much dead weight the wobble would be far smaller than we observe it to be,” Dr. Matthew Tiscareno, a Cassini scientist and co-author of a paper describing the discovery, said in a written statement. “This proves that there must be a global layer of liquid separating the surface from the core.”

The Cassini spacecraft can “‘see’ in wavelengths the human eye can’t and can ‘feel’ things about the magnetic fields and tiny dust particles that no human hand could detect,” according to NASA. The spacecraft was named after famed astronomer Jean-Dominique Cassini, who discovered four of Saturn’s whopping 62 moons.

On Oct. 28, Cassini will make it’s “deepest-ever dive” through the moon’s harsh, icy atmosphere when it passes just 30 miles above the surface.

Cassini Completes Final Close Enceladus Flyby: here.

Food for microbes found on Enceladus. Hydrogen in plume suggests hydrothermal activity on Saturnian moon. By Ashley Yeager, 2:00pm, April 13, 2017: here.

The Cassini spacecraft, now in the 13th and final year of its explorations in orbit around Saturn, has discovered molecular hydrogen in the plumes of gas and ice erupting out of the south pole of Saturn’s moon, Enceladus. This is further evidence of a mineral-laden and warm ocean benearth the moon’s ice-covered surface. It indicates for the first time that this ocean likely has hydrothermal vents and thus, similar to Earth, the geochemical energy necessary to support communities of microbial life: here.

A sandy core may have kept Enceladus’ ocean warm. Friction in the icy moon’s heart could help explain its dramatic plumes. By Lisa Grossman, 11:00am, November 6, 2017.

10 thoughts on “Ocean discovery on Saturn’s moon Enceladus

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