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Wed Mar 31, 2021, 03:16 PM

NASAPersevere: While the helicopter is getting ready, I can't help checking out nearby rocks. This


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NASA's Perseverance Mars Rover
@NASAPersevere
While the helicopter is getting ready, I canít help checking out nearby rocks. This odd one has my science team trading lots of hypotheses.

Itís about 6 inches (15 cm) long. If you look closely, you might spot the row of laser marks where I zapped it to learn more.



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Reply NASAPersevere: While the helicopter is getting ready, I can't help checking out nearby rocks. This (Original post)
soothsayer Mar 2021 OP
lagomorph777 Mar 2021 #1
Midnight Writer Mar 2021 #2
lagomorph777 Mar 2021 #4
blugbox Mar 2021 #3
lagomorph777 Mar 2021 #5
blugbox Mar 2021 #6
electric_blue68 Mar 2021 #7
lagomorph777 Apr 2021 #13
soothsayer Mar 2021 #9
denbot Mar 2021 #8
LymphocyteLover Mar 2021 #10
soothsayer Mar 2021 #11
KY_EnviroGuy Mar 2021 #12
Treefrog Apr 2021 #14
Calista241 Apr 2021 #15

Response to soothsayer (Original post)

Wed Mar 31, 2021, 03:18 PM

1. It looks like copper.

Like a copper meteorite.

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Response to lagomorph777 (Reply #1)

Wed Mar 31, 2021, 03:21 PM

2. If it is copper, does the blue color indicate oxidation?

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Response to Midnight Writer (Reply #2)

Wed Mar 31, 2021, 03:24 PM

4. Hmmm, now that you mention it, that makes no sense.

No oxygen to speak of on Mars...

So I see why Perseverance is curious.

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Response to soothsayer (Original post)

Wed Mar 31, 2021, 03:22 PM

3. Looks like copper oxidation

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Response to blugbox (Reply #3)

Wed Mar 31, 2021, 03:24 PM

5. No oxygen on Mars...so what does it mean?

Of course, the color might be completely wrong - often these pictures are infrared, or some odd combination of wavelengths.

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Response to lagomorph777 (Reply #5)

Wed Mar 31, 2021, 03:29 PM

6. Yeah either the color is different than what we are seeing...

Or perhaps at some point that rock had been exposed to surface water or a more acidic and humid atmosphere...

Very interesting either way! Hope we eventually get some answers!

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Response to lagomorph777 (Reply #5)

Wed Mar 31, 2021, 05:05 PM

7. You think so? Sometimes (and they specify) various Celestial...

photos as taken with infrared, x-ray email c cameras...
But I don't recall any previous Mars surface photos being labeled that way.

Otoh, I may have missed those in the past 🤔 👍

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Response to electric_blue68 (Reply #7)

Thu Apr 1, 2021, 08:13 AM

13. Most recent Mars landers didn't even have standard color cameras.

They would roughly approximate color by mixing some odd wavelengths of visible and infrared light.

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Response to lagomorph777 (Reply #5)

Wed Mar 31, 2021, 05:19 PM

9. Right, all those little blue pebbles around it

Maybe not blue IRL

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Response to soothsayer (Original post)

Wed Mar 31, 2021, 05:17 PM

8. Looks like mudstone with fossilized wormholes to me.

Of course the cavities could be from any number of non biological sources..

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Response to soothsayer (Original post)

Wed Mar 31, 2021, 05:21 PM

10. I assume the laser holes are the teeny tiny holes in the middle right part?

not the big holes

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Response to LymphocyteLover (Reply #10)

Wed Mar 31, 2021, 05:22 PM

11. Yes, very straight line of wee holes. I was confused at first

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Response to soothsayer (Original post)

Wed Mar 31, 2021, 06:15 PM

12. Perhaps similar to hematite-rich "blueberries" discovered by the Opportunity rover...

around 2004 and others by its sister rover Spirit?

See: https://mars.nasa.gov/resources/6944/martian-blueberries/


Early in its mission, the Opportunity rover spotted round, iron-rich concretions nicknamed "blueberries," which constituted one of several different types of evidence suggesting that Mars used to be wet. This (false-color) photo captures an area just 1.2 inches (3 centimeters) across. (Image credit: NASA/JPL-Caltech/Cornell/USGS)




We'll see what the instrument's analysis says........

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Response to soothsayer (Original post)

Thu Apr 1, 2021, 09:19 AM

14. Puts me in mind of an 'ashtray' i made in kindergarten out of clay, then it was fired.

This kind of looks like it after our cat knocked it off a table.

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Response to soothsayer (Original post)

Thu Apr 1, 2021, 09:22 AM

15. NASA is amazing. n/t

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