IPB
X   Site Message
(Message will auto close in 2 seconds)

Welcome Guest ( Log In | Register )

Iapetus - Black on white or white on black?
Ice and Gunk
You cannot see the results of the poll until you have voted. Please login and cast your vote to see the results of this poll.
Total Votes: 65
Guests cannot vote 
SFJCody
post Sep 14 2007, 07:40 AM
Post #1


Member
***

Group: Members
Posts: 813
Joined: 8-February 04
From: Arabia Terra
Member No.: 12
Seems to be a lot of dispute on this subject... I think it's ice from the interior, but what does everyone else think?

Edit:

This world seems very complex so the question could perhaps be phrased as 'which of these options is most responsible for the Iapetan dichotomy?'
Go to the top of the page
 
+Quote Post
 
 Start new topic
Replies
nprev
post Sep 17 2007, 04:27 PM
Post #2


Merciless Robot
****

Group: Admin
Posts: 8791
Joined: 8-December 05
From: Los Angeles
Member No.: 602
Like oDoug, I too noticed the apparent "duning" of dark material in some places; unlike him, didn't have the guts to mention it! tongue.gif

If this impression is true, then what the hell?! All I can think of is long-term outgassing that almost has to be recent & very local to the "dunes". Really want to see what the magnetometer read during this flyby; if anything's being emitted at all, that's the only shot we seemingly have of detecting it...(and, no, if any of this is really happening I have no feasible mechanism(s) to explain it...)


--------------------
A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
Go to the top of the page
 
+Quote Post
dvandorn
post Sep 17 2007, 04:59 PM
Post #3


Senior Member
****

Group: Members
Posts: 3419
Joined: 9-February 04
From: Minneapolis, MN, USA
Member No.: 15
QUOTE (nprev @ Sep 17 2007, 11:27 AM) *
Like oDoug, I too noticed the apparent "duning" of dark material in some places; unlike him, didn't have the guts to mention it! tongue.gif

Yep, that's me -- all guts, no glory... rolleyes.gif

-the other Doug


--------------------
“The trouble ain't that there is too many fools, but that the lightning ain't distributed right.” -Mark Twain
Go to the top of the page
 
+Quote Post

Posts in this topic
- SFJCody   Iapetus - Black on white or white on black?   Sep 14 2007, 07:40 AM
- - ngunn   I think the responses you offer are inadequate. Gl...   Sep 14 2007, 08:03 AM
- - ugordan   Where's the option "Black on White - blac...   Sep 14 2007, 08:04 AM
- - akuo   Is this a Michael Jackson song? Oh Iapetus, I wou...   Sep 14 2007, 08:15 AM
- - volcanopele   I would prefer a both option: white on black in so...   Sep 14 2007, 08:54 AM
|- - JRehling   QUOTE (volcanopele @ Sep 14 2007, 01:54 A...   Sep 14 2007, 04:15 PM
- - Juramike   (Objects collide) Object one: "Heeeey, you ...   Sep 14 2007, 03:41 PM
- - nprev   ...of course, in the Family Guy parody of this com...   Sep 14 2007, 04:00 PM
- - Michael Capobianco   I have to choose white on black on white - black e...   Sep 14 2007, 04:33 PM
- - lyford   The only thing that I can say is that after readin...   Sep 14 2007, 05:00 PM
- - MarcF   It was not a good idea to go to vacation far from ...   Sep 15 2007, 04:26 PM
- - tasp   I would pick transparent material everywhere, keye...   Sep 15 2007, 04:59 PM
|- - David   QUOTE (tasp @ Sep 15 2007, 04:59 PM) I wo...   Sep 15 2007, 08:34 PM
|- - ugordan   QUOTE (David @ Sep 15 2007, 09:34 PM) whe...   Sep 15 2007, 09:38 PM
|- - David   QUOTE (ugordan @ Sep 15 2007, 09:38 PM) C...   Sep 16 2007, 03:09 AM
- - tasp   Here is another 'negative' print of Iapetu...   Sep 16 2007, 04:00 AM
- - edstrick   I get an overwhelming impression that the white an...   Sep 16 2007, 05:23 AM
- - Bill Harris   You're right, Ed, this is all very mysterious....   Sep 16 2007, 10:41 AM
|- - JRehling   QUOTE (Bill Harris @ Sep 16 2007, 03:41 A...   Sep 17 2007, 05:22 AM
- - dvandorn   I agree, Bill -- the distribution of dark material...   Sep 16 2007, 02:37 PM
|- - David   QUOTE (dvandorn @ Sep 16 2007, 02:37 PM) ...   Sep 16 2007, 05:32 PM
|- - dvandorn   QUOTE (David @ Sep 16 2007, 12:32 PM) Wha...   Sep 17 2007, 04:48 PM
|- - nprev   QUOTE (dvandorn @ Sep 17 2007, 09:48 AM) ...   Sep 17 2007, 05:56 PM
- - tasp   I was wondering about those streamlined (not quite...   Sep 16 2007, 05:38 PM
|- - volcanopele   QUOTE (tasp @ Sep 16 2007, 10:38 AM) I wa...   Sep 17 2007, 05:18 AM
- - ilbasso   Seeing that old picture of Stevie Wonder made me t...   Sep 16 2007, 05:45 PM
- - tasp   I can't help but think in the initial flush of...   Sep 17 2007, 04:10 AM
|- - David   QUOTE (tasp @ Sep 17 2007, 04:10 AM) I ca...   Sep 17 2007, 06:10 AM
- - tasp   Hyperion.   Sep 17 2007, 01:53 PM
|- - David   QUOTE (tasp @ Sep 17 2007, 01:53 PM) Hype...   Sep 17 2007, 02:32 PM
|- - ngunn   QUOTE (David @ Sep 17 2007, 03:32 PM) no ...   Sep 17 2007, 04:00 PM
- - nprev   Like oDoug, I too noticed the apparent "dunin...   Sep 17 2007, 04:27 PM
|- - dvandorn   QUOTE (nprev @ Sep 17 2007, 11:27 AM) Lik...   Sep 17 2007, 04:59 PM
- - tasp   Here is some more 'ponding' to contemplate...   Sep 17 2007, 05:37 PM
- - tasp   And the comparison. {I suppose it would be nice...   Sep 17 2007, 05:39 PM
- - tasp   Crikey, there is something hinky going on tweenst ...   Sep 17 2007, 05:43 PM
- - tasp   We note earth's moon to have an orbit about ea...   Sep 17 2007, 06:08 PM
- - nprev   True, but Earth's Moon is thought to be an art...   Sep 17 2007, 06:12 PM
- - alan   There was a paper a couple of years ago linking Ti...   Sep 17 2007, 07:42 PM
- - edstrick   What can I say.. just look at this d__n stuff... A...   Sep 18 2007, 08:24 AM
|- - TheChemist   QUOTE (edstrick @ Sep 18 2007, 11:24 AM) ...   Sep 20 2007, 01:34 PM
|- - ugordan   QUOTE (TheChemist @ Sep 20 2007, 03:34 PM...   Sep 20 2007, 01:45 PM
- - dvandorn   OK -- I understand your conclusion, here. But I s...   Sep 18 2007, 01:46 PM
|- - The Messenger   QUOTE (dvandorn @ Sep 18 2007, 07:46 AM) ...   Sep 19 2007, 05:20 AM
|- - ugordan   QUOTE (dvandorn @ Sep 18 2007, 03:46 PM) ...   Sep 20 2007, 02:04 PM
- - TheChemist   Ugordan, I think that I see wide openings (holes) ...   Sep 20 2007, 02:00 PM
- - Bill Harris   RE: edstrick and the chemist, posts 40 & 42-- ...   Sep 20 2007, 04:26 PM
|- - David   QUOTE (Bill Harris @ Sep 20 2007, 04:26 P...   Sep 20 2007, 04:51 PM
|- - ustrax   Tilmann Denk's "vote" at spacEurope:...   Sep 24 2007, 04:35 PM
- - dvandorn   After seeing some of the contrast-enhanced images ...   Sep 24 2007, 04:59 PM
|- - JRehling   QUOTE (dvandorn @ Sep 24 2007, 09:59 AM) ...   Sep 24 2007, 08:03 PM
|- - David   QUOTE (JRehling @ Sep 24 2007, 08:03 PM) ...   Sep 24 2007, 09:24 PM
- - Bill Harris   My first, and continuing, impression of the dicho...   Sep 24 2007, 10:04 PM
- - David   QUOTE (Bill Harris @ Sep 24 2007, 10:04 P...   Sep 25 2007, 02:48 AM

« Next Oldest · Cassini's ongoing mission and raw images · Next Newest »
 

Reply to this topicStart new topic

 

Display Mode: Switch to: Standard · Switch to: Linear+ · Outline

Track this topic · Email this topic · Print this topic · Subscribe to this forum

RSS Lo-Fi Version Time is now: 17th December 2024 - 04:50 AM
Powered By IP.Board © 2024  IPS, Inc.
RULES AND GUIDELINES
Please read the Forum Rules and Guidelines before posting.

IMAGE COPYRIGHT
Images posted on UnmannedSpaceflight.com may be copyrighted. Do not reproduce without permission. Read here for further information on space images and copyright.

 OPINIONS AND MODERATION
Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators.		 SUPPORT THE FORUM
Unmannedspaceflight.com is funded by the Planetary Society. Please consider supporting our work and many other projects by donating to the Society or becoming a member.