Origin of Life on Mars? - Page 18

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Barsoomer


Posts: 344

Reply: 341



PostPosted: July 15, 2018 1:26 AM 

http://exploration.esa.int/mars/59461-a-window-on-the-exomars-rovers-search-for-martian-life/

Finally a rover that will actually look for life, and not just geology.

Dana Johnson


Posts: 1195

Reply: 342



PostPosted: July 15, 2018 4:46 PM 

Similar to the uprising apparent 'clouds' of particulates in motion at times on Mars, possibly? Pressure and carrying capacity are very differing, but the concept of microbial type content moving over great distances on Mars is supported by equivalent movement of large insect life swarms on Earth, with electric or other charge fields and fronts providing what air pressure and wind alone would be expected to produce.
Science is a baby learning to walk among the real objects of wisdom.

[link]

Faceless


Posts: 24

Reply: 343



PostPosted: July 17, 2018 3:59 AM 

""Mars is full of surprises," Eigenbrode, an interdisciplinary astrobiologist at NASA's Goddard Space Flight Center in Maryland, told Seeker. "You could easily be fooled, but is there going to be organic matter there? Probably. Is it going to tell us what we want to know [about life]? Maybe. Something we didn't think to ask? Probably.""
quoted from the third paragraph in https://www.seeker.com/space/the-case-for-sending-the-search-for-life-on-mars-underground
As a geologist and astrobiologist, could she tell biological cells from rock minerals?

Faceless


Posts: 24

Reply: 344



PostPosted: July 17, 2018 5:58 AM 

Regarding reply 343, "Something we didn't think to ask? Probably."
That "something" may include fossil cells and human civilization. But she may also be a political scientist.

Faceless


Posts: 24

Reply: 345



PostPosted: July 18, 2018 12:37 AM 

NASA associate administrator tweeted, "We are on the right tract. Stay the course."
(quoted from https://www.jpl.nasa.gov/news/news.php?feature=7154)
NASA scientist said, "Mars is full of surprises." "Something we didn't think to ask? Probably." (quoted from reply 343).

Faceless


Posts: 24

Reply: 346



PostPosted: July 18, 2018 1:59 AM 

Another NASA scientist said scientists need another Mars orbiter, a better rover and humans on Mars in order to find life on Mars. How about something or someone that can tell concrete from rocks? Or someone that can tell red blood cell remains and blood vessel remains from geology?

Faceless


Posts: 24

Reply: 347



PostPosted: July 19, 2018 12:55 AM 

Non-biology cannot form macromolecules. But NASA scientists think without any evidence that it can (notes 1, 2). There are numerous macromolecules on Mars, in meteorites, and in space dusts. Google for macromolecules.

Note 1: For the latest example, see
[link] story.html
Note 2: Organic matter includes small molecules and large molecules (macromolecules). Curiosity rover recently "probably" found macromolecules at Mojave and Columbus Hills on Mars (see note 1).

Faceless


Posts: 24

Reply: 348



PostPosted: July 19, 2018 1:53 AM 

Sorry, regarding reply 347, "Non-biology cannot form macromolecules."
The word "form" should be replaced with the word "originate".
The macromolecules found on Mars, in meteorites and in interstellar clouds and dust around stars, are remains of life, not molecules originated/created without life processes.

Faceless


Posts: 24

Reply: 349



PostPosted: July 22, 2018 5:36 AM 

"If you just throw carbon atoms together in a non-biological fashion, then there are 50,000 other possible isomers that the carbon atoms could form before they get to a chain of 18 carbon atoms," he tells Astrobiology Magazine. "The presence of an 18-carbon-atom fatty acid is almost certain to have been produced by biological processes." (quoted from Paragraph 7 in the following Space.com article:
[link] )
Murchison and Orgueil meteorites also contain fatty acids, so the meteorites also contain alien biological remains.

Faceless


Posts: 24

Reply: 350



PostPosted: July 22, 2018 5:51 AM 

Mars will be very near Earth next week. Ghosts on Mars may use the opportunity to influence Earth.

John Radogno


Posts: xxx

Reply: 351



PostPosted: July 22, 2018 10:32 AM 

Faceless,
Superstitions do not belong on a science blog.

Faceless


Posts: 24

Reply: 352



PostPosted: July 23, 2018 12:10 AM 

Superstitions in science:
1. Smoking causes cancer.
2. Breastfeeding is unessential.
3. Humans evolved from monkey-like animal.
4. There was no civilization on Earth 300 million years ago.
5. There were no dinosaurs on Earth 20,000 years ago.
6. Dinosaurs went extinct because of meteorite strikes or volcano eruptions.
7. Life originated from non-biological material.
8. There were no civilizations on Mars 3.7 billion years ago.
9. Apollo astronauts brought back rocks from our Moon.
10. E=MC2 is a complete equation.
11. Most asteroids and meteorites are as old as our solar system.

Related Information: [link]

Dana Johnson


Posts: 1195

Reply: 353



PostPosted: July 27, 2018 5:26 PM 

[link]

Faceless


Posts: 24

Reply: 354



PostPosted: July 29, 2018 7:18 AM 

Can geological processes produce these numerous tiny circles on Vera Rubin Ridge, Mars?
https://www.flickr.com/photos/fossil_lin/43708730721/in/dateposted-public/

John Radogno


Posts: xxx

Reply: 355



PostPosted: July 29, 2018 10:16 AM 

Yes, by natural geologic and wind process; they are small irregular depressions with micro-pebble/sand-grains sitting in them.

Faceless


Posts: 24

Reply: 356



PostPosted: July 30, 2018 12:02 AM 

Re 355, how do you know "natural geologic and wind process" can produce those tiny circles? Do you have evidence that can prove it? If geologic process can do that, why didn't it do that on Earth? Why didn't it produce ooids on Earth? Why on Earth didn't it produce shapes that resemble red blood cells?

John Radogno


Posts: 37

Reply: 357



PostPosted: July 30, 2018 2:40 AM 

Those tiny circles are irregular depressions in the rock. There are billions of these on Earth.

Faceless


Posts: 24

Reply: 358



PostPosted: July 30, 2018 4:37 AM 

That's no answer.

Faceless


Posts: 24

Reply: 359



PostPosted: July 30, 2018 5:04 AM 

Regarding replies 355, 357, red arrows in my figure point to almost perfectly round circles, not "irregular" depressions.

John Radogno


Posts: xxx

Reply: 360



PostPosted: July 30, 2018 10:44 AM 

I took another look. Can't really confirm that those are perfect circles, it doesn't look like it. Even the small sand grains don't look perfectly round when zooming in. You can't see fine detail very well. Doesn't really matter though, near perfect circles can happen naturally. It makes sense that a sand grain would be found in a rock depression, having more protection from the winds by being in a small depression would keep it there longer. We know that surface material moves around a lot on Mars an that most rocks do not have even surfaces when examined closely.
So anyway, I answered your question in #355. Yes, what you are looking at CAN be caused by a combination of weathering, surface movement and natural rock shapes.

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