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I'm back from the Europa Focus Group meeting...
Guest_BruceMoomaw_*
post Mar 1 2006, 07:33 AM
Post #1





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...which I decided to attend literally at the last possible minute, which is why I didn't alert you guys in advance. Very interesting -- both the discussions about the likely design of the mission (and how to retrieve it from cancellation), and many of the actual science presentations (which aren't on the Web yet, although they probably soon will be). I'll give you some more information tomorrow -- although I can't resist telling Alex that Tom Spilker's subgroup took my ideas about a Europa penetrator, and the printed information I gave them on the subject, seriously enough to recommend making further inquiries to NASA HQ on it. (And without my browbeating them, either. Nyaah.) The case for it, however, is still extremely far from certain.

As I say, more tomorrow.
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Phil Stooke
post Mar 7 2006, 09:07 PM
Post #2


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Here's a diagram of the Luna 9-style landers' landing sequence, showing the discarded padded shell... I'd prefer to call it that. The expression 'airbags' was never used by the Soviets until Pathfinder, when Russian sources started referring to the Luna 9 padding in the same way. I don't want to say it's intentionally misleading, it is probably a translation issue. But there was no sudden inflation as we would think of in airbags.

We have no idea how far the landed capsule rolled after being ejected from the carrier stage. The padded shell and the carrier rocket may be close by but hiddem by the tilt of the camera, or just too far away to be sen clearly. I have suggested that a big 'rock' (mapped as such by the Soviets) near Luna 13 might be its shattered carrier rocket stage.

Phil

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- BruceMoomaw   I'm back from the Europa Focus Group meeting...   Mar 1 2006, 07:33 AM
- - nprev   Standing by for that update, Bruce... ... ...and,...   Mar 2 2006, 01:43 AM
- - edstrick   Viking Lander 2 provided essentially no informatio...   Mar 2 2006, 09:01 AM
- - BruceMoomaw   One advantage of a penetrator is precisely that it...   Mar 2 2006, 02:11 PM
|- - ugordan   QUOTE (BruceMoomaw @ Mar 2 2006, 03:11 PM...   Mar 2 2006, 02:20 PM
- - djellison   I'm having difficulty imagining a Europa impac...   Mar 2 2006, 02:52 PM
- - BruceMoomaw   What we're talking about is similar to Paul Lu...   Mar 2 2006, 05:48 PM
|- - stevesliva   QUOTE (BruceMoomaw @ Mar 2 2006, 12:48 PM...   Mar 4 2006, 04:23 PM
|- - Bob Shaw   QUOTE (stevesliva @ Mar 4 2006, 04:23 PM)...   Mar 4 2006, 05:40 PM
- - PhilCo126   Interesting post ! Post Scriptum: aren't w...   Mar 2 2006, 06:13 PM
|- - helvick   QUOTE (PhilCo126 @ Mar 2 2006, 06:13 PM) ...   Mar 2 2006, 07:07 PM
|- - vexgizmo   QUOTE (PhilCo126 @ Mar 2 2006, 11:13 AM) ...   Mar 3 2006, 01:19 AM
- - BruceMoomaw   If I had a nickel for every time that joke was use...   Mar 2 2006, 08:16 PM
- - djellison   I make a 2km drop to Europa a 72 m/sec impact afte...   Mar 3 2006, 10:12 AM
- - BruceMoomaw   Yep. The "bowling ball" lander is suppo...   Mar 3 2006, 07:14 PM
- - nprev   4-10K Gs, huh? Gotta admit, the sheer survivabilit...   Mar 4 2006, 12:40 AM
- - BruceMoomaw   The tether idea, alas, would work about as well as...   Mar 4 2006, 10:39 PM
|- - Bob Shaw   Bruce: The ACME Space Science Corporation (tm) Bo...   Mar 4 2006, 10:56 PM
|- - JRehling   QUOTE (BruceMoomaw @ Mar 4 2006, 02:39 PM...   Mar 6 2006, 07:04 PM
|- - Bob Shaw   QUOTE (JRehling @ Mar 6 2006, 07:04 PM) C...   Mar 6 2006, 07:42 PM
|- - odave   QUOTE (JRehling @ Mar 6 2006, 02:04 PM) t...   Mar 6 2006, 07:55 PM
- - dvandorn   If we're going to delve into the realm of Loon...   Mar 5 2006, 03:59 AM
- - BruceMoomaw   Well, you know, Bugs once stopped a crashing airpl...   Mar 5 2006, 05:57 AM
- - edstrick   For those that don't know it... look for the o...   Mar 5 2006, 07:41 AM
|- - helvick   QUOTE (edstrick @ Mar 5 2006, 07:41 AM) Y...   Mar 5 2006, 09:03 AM
- - edstrick   (notices he can't even spell "Cartoon...   Mar 5 2006, 09:30 AM
- - gpurcell   Just a silly little idea, but why couldn't you...   Mar 5 2006, 03:52 PM
|- - centsworth_II   QUOTE (gpurcell @ Mar 5 2006, 10:52 AM) ....   Mar 5 2006, 04:13 PM
- - edstrick   Actually, Ranger A or I think more accurately the ...   Mar 7 2006, 08:17 AM
- - BruceMoomaw   The trouble with Rehling's idea is that all th...   Mar 7 2006, 11:32 AM
|- - JRehling   QUOTE (BruceMoomaw @ Mar 7 2006, 03:32 AM...   Mar 7 2006, 03:44 PM
|- - JRehling   QUOTE (BruceMoomaw @ Mar 7 2006, 03:32 AM...   Mar 7 2006, 05:49 PM
- - edstrick   And of course the real story only marginally match...   Mar 7 2006, 12:46 PM
|- - Bob Shaw   QUOTE (edstrick @ Mar 7 2006, 12:46 PM) A...   Mar 7 2006, 03:56 PM
- - BruceMoomaw   The Europa Ball has little teeny camera ports -- o...   Mar 7 2006, 08:51 PM
- - Phil Stooke   Here's a diagram of the Luna 9-style landers...   Mar 7 2006, 09:07 PM
|- - Bob Shaw   QUOTE (Phil Stooke @ Mar 7 2006, 09:07 PM...   Mar 7 2006, 09:17 PM
- - BruceMoomaw   The article is extremely explicit that there WERE ...   Mar 7 2006, 09:13 PM
- - BruceMoomaw   Additional notes: (1) The braking engine was sh...   Mar 7 2006, 09:51 PM
- - BruceMoomaw   Getting back to Europa: the most interesting purel...   Mar 7 2006, 10:12 PM
|- - AlexBlackwell   QUOTE (BruceMoomaw @ Mar 7 2006, 10:12 PM...   Mar 7 2006, 10:18 PM
- - Phil Stooke   Bruce, I hadn't known about the inflatable bla...   Mar 7 2006, 10:14 PM
|- - Bob Shaw   Bruce: If you get the chance to point us at some ...   Mar 7 2006, 10:18 PM
- - BruceMoomaw   Correction: the spectral resolution of the Keck sp...   Mar 7 2006, 10:34 PM
|- - AlexBlackwell   QUOTE (BruceMoomaw @ Mar 7 2006, 10:25 PM...   Mar 7 2006, 10:35 PM
- - BruceMoomaw   I wouldn't say it was my FAVORITE hobbyhorse; ...   Mar 8 2006, 01:17 AM
- - BruceMoomaw   There's a short description (and external pict...   Apr 28 2006, 09:26 AM


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