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Old 12-27-2017, 08:22 AM   #361
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Indeed, must have been made a while ago. Interesting little resume though.

N.
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Old 03-24-2018, 10:13 AM   #362
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The latest JPL Von Karman Lecture series talks about "Planning Cassini's Grand Finale."

Very nice video!

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Old 06-28-2018, 05:48 PM   #363
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Saturn Moon Enceladus Is First Alien 'Water World' with Complex Organics

Complex organic molecules have been discovered for the first time coming from the depths of Saturn's moon Enceladus, a new study reported.

Spacecraft scheduled to launch soon could explore what this new discovery says about the chances of life within icy moons like Enceladus, the study's researchers said.

The sixth largest of Saturn's moons, Enceladus is only about 314 miles (505 kilometers) in diameter. This makes the moon small enough to fit inside the borders of Arizona. [Photos of Saturn's Icy Moon Enceladus]

In 2005, NASA's Cassini spacecraft detected plumes of water vapor and icy particles erupting from Enceladus, revealing the existence of a giant ocean hidden under the moon's frozen shell. Because there is life virtually wherever there is water on Earth, these findings suggested that life might also exist on Enceladus.

Previously, scientists had detected only simple organic (carbon-based) compounds, each less than about five carbon atoms in size, in the plumes of Enceladus. Now, researchers have detected complex organic molecules from the moon, including some at least 15 carbon atoms in size.

[...]
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https://www.space.com/41005-saturn-m...molecules.html
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Old 07-10-2018, 03:52 AM   #364
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Listen: Sound of Electromagnetic Energy Moving Between Saturn, Enceladus



New research from NASA’s Cassini spacecraft’s up-close Grand Finale orbits shows a surprisingly powerful and dynamic interaction of plasma waves moving from Saturn to its rings and its moon Enceladus. The observations show for the first time that the waves travel on magnetic field lines connecting Saturn directly to Enceladus. The field lines are like an electrical circuit between the two bodies, with energy flowing back and forth.

Researchers converted the recording of plasma waves into a “whooshing” audio file that we can hear -- in the same way a radio translates electromagnetic waves into music. In other words, Cassini detected electromagnetic waves in the audio frequency range -- and on the ground, we can amplify and play those signals through a speaker. The recording time was compressed from 16 minutes to 28.5 seconds.


NASA’s Cassini spacecraft’s Grand Finale orbits found a powerful interaction of plasma waves moving from Saturn to its rings and its moon Enceladus.
Credits: NASA/JPL-Caltech


The interaction of Saturn and Enceladus is different from the relationship of Earth and its Moon. Enceladus is immersed in Saturn’s magnetic field and is geologically active, emitting plumes of water vapor that become ionized and fill the environment around Saturn. Our own Moon does not interact in the same way with Earth. Similar interactions take place between Saturn and its rings, as they are also very dynamic.

The recording was captured Sept. 2, 2017, two weeks before Cassini was deliberately plunged into the atmosphere of Saturn. The recording was converted by the RPWS team at the University of Iowa, led by physicist and RPWS Principal Investigator Bill Kurth.

The GRL research is available on the American Geophysical Union’s website:

https://agupubs.onlinelibrary.wiley....9/2018GL078130

https://agupubs.onlinelibrary.wiley....9/2018GL077875

Source: NASA
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Old 07-10-2018, 04:15 AM   #365
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In other words, Cassini detected electromagnetic waves in the audio frequency range
No, Cassini detected waves that had to be slowed down by a factor of five to get them into the audio range, according to the video (at 1:10).

We've seen this sort of thing before; Cassini, Galileo, and near-earth satellites have picked up radio waves from the magnetic fields of Saturn, Jupiter, and Earth, and then on the ground they are slowed down and processed as audio. The result is always this creepy 1950's sci fi sound effect that is awesome.
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Old 08-18-2018, 07:53 PM   #366
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Space.com Image of the Day
Earth and the Moon Photobomb Saturn's Rings


Credit: NASA/JPL-Caltech/SSI/CICLOPS/Kevin M. Gill/Flickr
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Earth and the moon play "peekaboo" behind Saturn's rings in this image from NASA's Cassini spacecraft. Citizen scientist Kevin Gill processed the image using data collected on April 13, 2017, about five months before the mission ended with a crash-dive into Saturn. Hanneke Weitering
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Old 09-04-2018, 10:22 PM   #367
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04 September 2018
The long-lived international Cassini mission has revealed a surprising feature emerging at Saturn's northern pole as it nears summertime: a warming, high-altitude vortex with a hexagonal shape, akin to the famous hexagon seen deeper down in Saturn's clouds. This suggests that the lower-altitude hexagon may influence what happens up above, and that it could be a towering structure spanning hundreds of kilometres in height.
http://sci.esa.int/cassini-huygens/6...ve-the-clouds/
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Old 09-24-2018, 03:52 PM   #368
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Cassini had spotted dust storms on Titan, making it the third body in the solar system with dust storms.

http://www.esa.int/Our_Activities/Sp...the_first_time
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