Water plumes over Europa |
Water plumes over Europa |
Dec 12 2013, 04:55 PM
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#1
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Member Group: Members Posts: 401 Joined: 5-January 07 From: Manchester England Member No.: 1563 |
This seems like the relevant place to post this (could be wrong): Water plumes from Europa? Apologies if it's already been up. The link to the Science article at the bottom doesn't work for me, does anyone have a working link to the original? Cheers.
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Dec 22 2014, 06:03 PM
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#2
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Member Group: Members Posts: 495 Joined: 12-February 12 Member No.: 6336 |
Despite the result from the Hubble telescope, a check of old data by Cassini failed to reveal any plumes at Europa.
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Dec 23 2014, 04:21 AM
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#3
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Member Group: Members Posts: 202 Joined: 9-September 08 Member No.: 4334 |
Despite the result from the Hubble telescope, a check of old data by Cassini failed to reveal any plumes at Europa. That looks like it's only for one brief period (the flyby), though, right? So that doesn't really cast doubt on the Hubble results since it's not for the same time -- does it? |
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Dec 25 2014, 06:46 AM
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#4
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Member Group: Members Posts: 495 Joined: 12-February 12 Member No.: 6336 |
That looks like it's only for one brief period (the flyby), though, right? So that doesn't really cast doubt on the Hubble results since it's not for the same time -- does it? Yes its ofc data only for the time of the flyby, even so Cassini did not look for any active plumes but for any resulting cloud and the latter would hang around a lot longer. @Vjkane: I am firmly with nprev here, the plumes of Enceladus were actively searched after, and it took quite a while before we got that first backlit image showing them clearly. That something have been going on at Encladus have been known at least since the data from the Voyagers did show something were going on at this moon. A rebuttal is a good sign, hardly anyhing in the scientific world is accepted before someone else have poked your hypothesis hard with a pointy stick. =) |
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Dec 25 2014, 04:24 PM
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#5
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Member Group: Members Posts: 611 Joined: 23-February 07 From: Occasionally in Columbia, MD Member No.: 1764 |
@Vjkane: I am firmly with nprev here, the plumes of Enceladus were actively searched after, and it took quite a while before we got that first backlit image showing them clearly. That something have been going on at Encladus have been known at least since the data from the Voyagers did show something were going on at this moon. Just to enlarge on this, the Cassini Phase A report in 1988 clearly shows the degree of interest, declaring Iapetus and Enceladus the two icy satellites of particular interest, noting (section 3.4.2) 'The strange appearance of Enceladus surface and the location of the ephemeral E-ring may be a coincidence, but there is a strong probability that they are connected in some manner, possibly through current eruptive activity on Enceladus' |
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Dec 28 2014, 04:18 AM
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#6
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Member Group: Members Posts: 706 Joined: 22-April 05 Member No.: 351 |
Just to enlarge on this, the Cassini Phase A report in 1988 clearly shows the degree of interest, declaring Iapetus and Enceladus the two icy satellites of particular interest, noting (section 3.4.2) 'The strange appearance of Enceladus surface and the location of the ephemeral E-ring may be a coincidence, but there is a strong probability that they are connected in some manner, possibly through current eruptive activity on Enceladus' Yeah, I blew it on this one. I was focused on the contrast in level of activity of Enceladus (which I think (corrections welcome!) was not expected) with the possible level at Europa. I remember being at JPL for one of the Voyager flybys when I believe I first heard the idea that Enceladus might have some volcanic idea was discussed. -------------------- |
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