InSight Surface Operations, 26 Nov 2018- 21 Dec 2022 |
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InSight Surface Operations, 26 Nov 2018- 21 Dec 2022 |
 Oct 23 2019, 10:26 PM
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#736
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 Member  Group: Members Posts: 866 Joined: 15-March 05 From: Santa Cruz, CA Member No.: 196  |
Mole: the legend continues, episode:322
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Oct 25 2019, 12:14 PM
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#737
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 Member Group: Members Posts: 100 Joined: 20-January 06 Member No.: 652 |
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Oct 27 2019, 01:06 AM
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#738
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Member Group: Members Posts: 100 Joined: 20-January 06 Member No.: 652 |
The new images do not look good.
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Oct 27 2019, 01:28 AM
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#739
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 Senior Member Group: Members Posts: 1418 Joined: 26-July 08 Member No.: 4270 |
Ouch.
Attached thumbnail(s)
-------------------- -- Hungry4info (Sirius_Alpha)
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Oct 27 2019, 01:29 AM
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#740
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Senior Member Group: Members Posts: 1582 Joined: 14-October 05 From: Vermont Member No.: 530 |
Yikes. Rapidly backwards.
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Oct 27 2019, 02:49 AM
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#741
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 Senior Member Group: Members Posts: 2082 Joined: 13-February 10 From: Ontario Member No.: 5221 |
An image from 12:30 or so shows the tether as a bit blurry, like it was moving when the image was taken. Very strange! What will SEIS have recorded...
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Oct 27 2019, 02:54 AM
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#742
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Forum Contributor Group: Members Posts: 1372 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11 |
QUOTE (Hungry4info @ Oct 27 2019, 02:28 AM)  Ouch. What the bleep happened ? |
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Oct 27 2019, 05:35 AM
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#743
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Member Group: Members Posts: 201 Joined: 16-December 13 Member No.: 7067 |
is it gonna fall over when they lift the scoop....
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Oct 27 2019, 06:01 AM
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#744
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Junior Member Group: Members Posts: 43 Joined: 13-June 08 Member No.: 4206 |
QUOTE (anticitizen2 @ Oct 27 2019, 05:35 AM) is it gonna fall over when they lift the scoop.... Looks quite precarious.. indeed.. Surprised the mole design doesn't include angled prongs/barbs that only allow forward movement. Also surprised at the high-frequency the mole hammers with - all that does is encourage material to settle at the bottom. At least it did in my toy sandbox when I was a kid. Digging here on Earth involves pushing a lot of mass at low frequency to break things, it's common sense. High frequency movements just pack things, and the mole is packing itself backwards it seems. I also hope they're considering the angle of the bucket/scoop. Aligning it one way will promote downward movement, another way will cause it back out. Well.. they know what they're doing. |
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Oct 27 2019, 09:27 AM
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#745
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Senior Member Group: Members Posts: 1276 Joined: 25-November 04 Member No.: 114 |
I was so excited and now this happened.
I'm very worried. |
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Oct 27 2019, 10:38 AM
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#746
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 Member Group: Members Posts: 214 Joined: 30-December 05 Member No.: 628 |
First sentence of the most recent DLR blog post:
"On sol 318 we had the Mole execute 150 more strokes that brought the back-cap of the Mole so close to the scoop that continuing with pinning was no longer considered safe." So maybe they have accidentally snagged the back-cap while moving the scoop? I doubt that the mole could jump like that under its own power. |
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Oct 27 2019, 01:45 PM
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#747
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Senior Member Group: Members Posts: 1582 Joined: 14-October 05 From: Vermont Member No.: 530 |
I think the scoop was already moved off the mole and into to the position where it presses on the adjacent surface. It sounded like this round of digging was hopefully to make the mole disappear beneath the surface at which point they were going to pause and move the support structure back. That might helped to prevent this, but I don't know because this is weird.
I'm also very worried. |
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Oct 27 2019, 02:53 PM
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#748
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Senior Member Group: Members Posts: 1418 Joined: 26-July 08 Member No.: 4270 |
The most recent images show it has come out even further, and has started to tip over some more. The ground also appears more compressed. Is it possible we were somewhat filling the hole, and the mole was bouncing off the dirt as it filled in?
Attached thumbnail(s)
-------------------- -- Hungry4info (Sirius_Alpha)
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Oct 27 2019, 06:49 PM
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#749
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 Merciless Robot Group: Admin Posts: 8783 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
Has anyone seen any sort of official statement from the program yet? Hopefully they have derived at least a tentative explanation for this bizarre occurrence.
Can't imagine that this ever happened during testing. If nothing else, this is a reminder that a- testing can never encompass all possible contingencies and b- there isn't anything easy about Mars. EDIT: New from the InSight Twitter/FB feed: "Mars continues to surprise us. While digging this weekend the mole backed about halfway out of the ground. Preliminary assessment points to the unexpected soil properties as the main reason. One possibility that has been observed in testing on Earth is that soil could fall in front of the mole’s tip as it rebounds, gradually filling the hole in front of it as the mole backs out. My team continues to look over the data and will have a plan in the next few days." -------------------- 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.
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Oct 27 2019, 08:42 PM
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#750
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Junior Member Group: Members Posts: 43 Joined: 13-June 08 Member No.: 4206 |
QUOTE (nprev @ Oct 27 2019, 06:49 PM) One possibility that has been observed in testing on Earth is that soil could fall in front of the mole’s tip as it rebounds, gradually filling the hole in front of it as the mole backs out. My team continues to look over the data and will have a plan in the next few days." That's a result of high-frequency drilling. You don't see jackhammers working at such rates. |
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