Cassini mission provides insight into Saturn

Cassini mission provides insight into Saturn
Saturn. Credit: NASA/JPL/JHUAPL

Scientists have found the first direct evidence for explosive releases of energy in Saturn's magnetic bubble using data from the Cassini spacecraft, a joint mission between NASA, the European Space Agency, and the Italian Space Agency. The research is reported in the journal Nature Physics.

These "explosions" are produced in a process known as , something well studied at Earth and is an important part of Space Weather, involved in energising the radiation belts and producing displays of the Northern lights.

Space Physicists led by Lancaster University used data to show that Cassini had passed through the region at Saturn where magnetic reconnection was occurring, which has never before been observed.

One of the mysteries this gives us clues to answering is how Saturn's magnetic bubble, known as its magnetosphere, gets rid of gas from Saturn's tiny icy moon Enceladus. Through jets at its south pole, this tiny 500 km-sized moon ejects around 100 kg of water into space every second.

Dr Chris Arridge, lead author of the study, said: "Water from the Enceladus plume is trapped in Saturn's magnetosphere. We know it can't just stay there for ever and until now we have not been able to work out how it has been ejected from the magnetosphere."

Previous work has suggested that magnetic reconnection cannot allow all enough plasma to escape from the magnetosphere. The results show that this is indeed possible.

These results are also important for understanding Jupiter's , where similar processes occur, and may also be relevant for other rapidly spinning astrophysical systems, such as young stars.


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Cassini data shows Saturn moon may affect planet's magnetosphere

More information: C. S. Arridge et al. Cassini in situ observations of long-duration magnetic reconnection in Saturn's magnetotail, Nature Physics (2015). DOI: 10.1038/nphys3565
Journal information: Nature Physics

Citation: Cassini mission provides insight into Saturn (2015, December 1) retrieved 23 August 2019 from https://phys.org/news/2015-12-cassini-mission-insight-saturn.html
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Dec 01, 2015
Starting to wonder about this site, honestly, who proof read this before committing to posting?

Dec 01, 2015
You should be questioning the claims rather than the spelling.

Dec 01, 2015
"Magnetic reconnection is (as always) pseudoscience." Hannes Alfven

Dec 01, 2015
"Magnetic reconnection is (as always) pseudoscience." Hannes Alfven


Except it is now an accepted part of physics. Tough sh*t. Alvfen got a Nobel prize for MHD. He also got a lot of sh*t wrong. End of. Just like Perratt.
Perhaps you'd like to spell out out the successful claims of the scientifically illiterate EU hypothesis, so far. Start with the electric comet b*llocks. How's that going?
Looking forward to hearing from you.

yep
Dec 02, 2015
"Magnetic reconnection is (as always) pseudoscience." Hannes Alfven

Except it is now an accepted part of physics. Tough sh*t. Alvfen got a Nobel prize for MHD. He also got a lot of sh*t wrong. End of. Just like Perratt.
Perhaps you'd like to spell out out the successful claims of the scientifically illiterate EU hypothesis, so far. Start with the electric comet b*llocks. How's that going?
Looking forward to hearing from you.


It's going quite well, thanks for asking!
http://www.aanda....-15.html
If you never get anything wrong you'll never get anything right either.
In your case, it's the more data that comes in, the more wrong you become.

Dec 02, 2015
If you never get anything wrong you'll never get anything right either.

Um..whut?

Sounds like one of Murphy's laws (Conservation of Filth) "To get something clean you have to get something else dirty"*

*Corollary: But you can get everything dirty without getting anything clean. (Read: Just becuse you get some things wrong doesn't automatically mean you'll ever get anything right)

yep
Dec 02, 2015
Um..whut?


If you read Jonesdave's comment?

We can always count on you Antialias "Get your facts first then you can distort them as much as you please" Twain

Dec 05, 2015
"Magnetic reconnection is (as always) pseudoscience." Hannes Alfven


Except it is now an accepted part of physics. Tough sh*t. Alvfen got a Nobel prize for MHD. He also got a lot of sh*t wrong. End of. Just like Perratt.
Perhaps you'd like to spell out out the successful claims of the scientifically illiterate EU hypothesis, so far. Start with the electric comet b*llocks. How's that going?
Looking forward to hearing from you.

As yep said, it's going quite well.

https://www.youtu...cGTerTfw

https://www.youtu...i33LYaRU

https://www.youtu...APdMa9a4

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