Date: 6/01/2018 16:40:49
From: Bubblecar
ID: 1170304
Subject: Curiosity Snaps Unidentified Tube-Like Structures

…a few days ago.

From SPAAAACE.com

The origin of these odd features — geological or biological processes — is in TBD limbo at the moment.

Regarding trace fossils on Mars, “we don’t rule it out,” Vasavada said, “but we certainly won’t jump to that as our first interpretation.”

Close-up looks at these features show them to be angular in multiple dimensions. That could mean that they are related to crystals in the rock, perhaps “crystal molds” that are also found here on Earth, Vasavada added. Crystals in rock that are dissolved away leave crystal molds, he said.

Still, that’s just one of a few possibilities, Vasavada explained. “If we see more of them … then we begin to say that this is an important process that’s going on at Vera Rubin Ridge,” he said.

https://www.space.com/39294-mars-rover-curiosity-weird-tube-structures.html

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Date: 6/01/2018 16:47:46
From: Michael V
ID: 1170309
Subject: re: Curiosity Snaps Unidentified Tube-Like Structures

Very very interesting. Thanks.

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Date: 6/01/2018 16:50:55
From: PermeateFree
ID: 1170310
Subject: re: Curiosity Snaps Unidentified Tube-Like Structures

Michael V said:


Very very interesting. Thanks.

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Date: 6/01/2018 16:53:58
From: PermeateFree
ID: 1170312
Subject: re: Curiosity Snaps Unidentified Tube-Like Structures

PermeateFree said:


Michael V said:

Very very interesting. Thanks.


Rutile

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Date: 6/01/2018 18:49:55
From: dv
ID: 1170375
Subject: re: Curiosity Snaps Unidentified Tube-Like Structures

Kind of looks like coprolites

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Date: 7/01/2018 05:28:08
From: wookiemeister
ID: 1170590
Subject: re: Curiosity Snaps Unidentified Tube-Like Structures

The atmosphere never showed any change – hence no life

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Date: 7/01/2018 22:22:48
From: mollwollfumble
ID: 1171014
Subject: re: Curiosity Snaps Unidentified Tube-Like Structures

wookiemeister said:


The atmosphere never showed any change – hence no life

Like Earth, Mars’s atmosphere is a secondary atmosphere created by outgassing from the interior. Which means that it used to be thinner, lower pressure, in the past when Mars was geologically active.

As for the “tube-like” structures, they look completely foreign to me. They’re not tubes, or sheets, but something in between. Which leaves me scratching my head.

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