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Cassini Spots Geysers On Saturn's Moon Enceladus
An anonymous reader writes "Huge geysers on Saturn's moon Enceladus may be fed by a salty sea below its surface, boosting the odds of extraterrestrial life in our own Solar System."
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The geysers are old news. The new news is that Cassini has detected SALTS in Saturn's rings, pointing to a possible salty ocean under the icy surface of Enceladus.
One simple rule for its versus it's
My understanding is that the major thing of interest is that there is _salt water_ on this moon. salt usually comes from rocks and to get it into water pretty much requires _liquid_ water, therefore the possibility of a life sustaining habitat. the geysers indicate is its possible that it has a liquid core, though i could be mistaken on that part.
i wage a holy war against the apostrophe.
It means that if we find some kind of intelligent shrimp on Enceladus we will be able to eat them without adding salt.
that seems like a pretty dumb idea. if there is any life outside our earth, sending life forms into its habitat could be incredibly destructive. the idea isn't to kill everything we see (though humans are good at that, i'll admit) its to learn about what might be out there.
i wage a holy war against the apostrophe.
I like it.
Besides, the more I learn about the human body, the more convinced our real purpose is to move bacteria around, so this is a logic extension of out purpose.
The Kruger Dunning explains most post on
...that's where I get all my planetary science news! not. also. also. Why do people do this? This is the internet, not your local morning paper. You can go wherever you want to get this information. WHY NOT GO DIRECTLY TO THE SOURCE!?
- "Hear that?! The percolations are imminent! Cease your ingress!"
Good riddance.
Don't let the Van Allen Belt hit you in the ass on the way out.
NASA disagrees: http://spaceplace.nasa.gov/en/kids/spitzer/signs/sign_glossary.shtml#S
"solar system
A system of planets, moons, asteroids, comets, dust, gas, and any other objects that orbit a star, tied to it by the star's gravitational force. "
See my journal for slashdot ID's by year. Mine created in 2005. http://slashdot.org/journal/289875/slashdot-ids-by-year
To what end? The same thing has occurred to me, but I can't fathom a useful end-product. If we want to study the behavior of exotic bacteria/whatever, we can replicate the conditions here on Earth much more cheaply than rocketing them off into space (not to mention they'd be much easier to watch/study). And if you've got some fantasy of them evolving into super-fish or whatever, you'd better be REALLY patient. (And, again, even if you're hoping for macro-evolution, we could replicate the environment more easily than visiting it.) If it's dead, I see no benefit of adding life.
My vote - It's much more interesting to just keep it pristine and see what's there (even if it's nothing.) And, if there is life, it would be far more interesting to see something (however primitive) that had a fresh start rather than something that started here.
He's getting rather old, but he's a good mouse.
I wonder...
So we have this moon that possibly has life in its ocean. And geysers which put this water into known orbits. Together with the water they put salts. And life - if one exists there.
So..."orbital scoop" flying for few years has a big chance to catch some microbes for the ride. Unfortunatelly...it will be probably several more decades before the next mission to Saturn; several more decades before we can sent purpose built spacecraft.
However...we already have a spacecraft that was flying there for quite some time. Perhaps, once RTGs deplete to such a degree that the scientific package will have to be largery shut down, it is sensible to:
1) put Cassini into orbit which maximalises probabilities of catching something for the ride (and without too much risk of hitting some ice block)
2) after several more years - bring Cassini back (through http://en.wikipedia.org/wiki/Interplanetary_Transport_Network for example). Put it into stable, high Earth orbit where it can wait for us to have means to investigate it (too bad we get rid of Shuttles, they would be usefull for that oe thing...)
It seems to me to be much better conclusion of the mission (even we won't find any signs of life on it) than sending it plunging towards Saturn...
One that hath name thou can not otter
Someone, I can't remember who, said that "life was water's way of moving itself around."
This ain't rocket surgery.