Curiosity rover on Mars

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Re: Curiosity rover on Mars

#541  Postby the_5th_ape » Oct 06, 2014 5:23 am

DougC wrote:curiosity weird pic's, and talk.

fcking Wow :clap:
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Re: Curiosity rover on Mars

#542  Postby DougC » Dec 09, 2014 5:25 pm

http://www.bbc.co.uk/news/science-environment-30390143
B.B.C. Article
Mars rover 'solves mountain riddle'
Scientists working on Nasa's Curiosity rover think they can now explain why there is a huge mountain at the robot's landing site in Mars's Gale Crater.
They believe it is the remains of sediments laid down in successive lakes that filled the deep bowl, probably over tens of millions of years.
Only later did winds dig out an encircling plain to expose the 5km-high peak we see today.
If true, this has major implications for past climates on the Red Planet.
It implies the world had to have been far warmer and wetter in its first two billion years than many people had previously recognised.
Ancient Mars, says the Curiosity team, must have enjoyed a vigorous global hydrological cycle, involving rains or snows, to maintain such humid conditions.
One tantalising consequence of this is the possibility that the planet may even have fe[url][/url]atured an ocean somewhere on its surface.

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Re: Curiosity rover on Mars

#543  Postby DougC » Dec 16, 2014 10:28 pm

http://www.bbc.co.uk/news/science-environment-30456664
B.B.C. Article
Methane 'belches' detected on Mars
Nasa's Curiosity rover has detected methane on Mars - a gas that could hint at past or present life on the planet.
The robot sees very low-level amounts constantly in the background, but it also has monitored a number of short-lived spikes that are 10 times higher.
Methane on the Red Planet is intriguing because here on Earth, 95% of the gas comes from microbial organisms.
Researchers have hung on to the hope that the molecule's signature at Mars might also indicate a life presence.
The Curiosity team cannot identify the source of its methane, but the leading candidate is underground stores that are periodically disturbed.
Curiosity scientist Sushil Atreya said it was possible that so-called clathrates were involved.
"These are molecular cages of water-ice in which methane gas is trapped. From time to time, these could be destabilised, perhaps by some mechanical or thermal stress, and the methane gas would be released to find its way up through cracks or fissures in the rock to enter the atmosphere," the University of Michigan professor told BBC News.

(Continues)


http://www.nasa.gov/content/goddard/mars-organic-matter/#.VJC6Z9KsWDk
NASA Article
NASA Goddard Instrument Makes First Detection of Organic Matter on Mars
The team responsible for the Sample Analysis at Mars (SAM) instrument suite on NASA's Curiosity rover has made the first definitive detection of organic molecules at Mars. Organic molecules are the building blocks of all known forms of terrestrial life, and consist of a wide variety of molecules made primarily of carbon, hydrogen, and oxygen atoms. However, organic molecules can also be made by chemical reactions that don't involve life, and there is not enough evidence to tell if the matter found by the team came from ancient Martian life or from a non-biological process. Examples of non-biological sources include chemical reactions in water at ancient Martian hot springs or delivery of organic material to Mars by interplanetary dust or fragments of asteroids and comets.

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Re: Curiosity rover on Mars

#544  Postby Rumraket » Dec 18, 2014 9:09 am

Analyze more, for fucks sake. MORE!
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Re: Curiosity rover on Mars

#545  Postby kennyc » Dec 18, 2014 11:14 am

From the Planetary Society: "Like a Bad Penny: Methane on Mars"

http://www.planetary.org/blogs/guest-bl ... -mars.html
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Re: Curiosity rover on Mars

#546  Postby kennyc » Dec 24, 2014 12:55 pm

Ethan puts his money where his mouth is.....Great article over-all and not just about methane on Mars

“It is always the simple that produces the marvelous.” -Amelia Barr
The headlines always seem to be coming in, with the latest more spectacular than the last. Researchers detect possible signal from dark matter! NASA Rover Finds Active, Ancient Organic Chemistry on Mars! And yet, is there a signal from dark matter that we can go out and measure? Is there anything “organic” happening on Mars at all?

If all you do is listen to the headlines and read the press releases/articles that come out about them, you’ll probably be led to believe the odds lie somewhere between “perhaps,” “probably” and “almost definitely.” And why wouldn’t you? After all, as respects the dark matter signal, you’ll see a graph like this, coming from the scientific paper itself.

.....

Pretty compelling that something’s there at 3.5 keV, isn’t it? Why wouldn’t it be dark matter!

And for the Mars Curiosity rover, that’s perhaps even more compelling. After all, the rover detected a tenfold spike in methane at the same location over a very short timespan, a very interesting find! Here on Earth, methane is produced by living organisms, and then NASA went and released this official graphic.
Image
....


https://medium.com/starts-with-a-bang/f ... 610ca13136
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Re: Curiosity rover on Mars

#547  Postby Zadocfish2 » Dec 24, 2014 1:09 pm

GAAAAH LIFE POSSIBLY MAYBE PERHAPS KINDOF!!

I know the chances are still near zero, sure... but I just dream of the possible headlines, "We are not alone in the Universe".

Even if we only share it with microbes.

Maybe I shouldn't get my hopes up.
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Re: Curiosity rover on Mars

#548  Postby DougC » Jan 15, 2015 12:41 am

B.B.C. - Curiosity rover clobbers Mars rock

Image

Image

VANDAL!! :snooty:
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Re: Curiosity rover on Mars

#549  Postby Made of Stars » Jan 15, 2015 5:43 am

Pew pew pew!

Just think of the carnage that could be wrought by a clumsy footed astronaut with a rock hammer. :nono:
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Re: Curiosity rover on Mars

#550  Postby DougC » Jan 30, 2015 8:47 pm

B.B.C. - Curiosity Mars rover back in the groove
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Re: Curiosity rover on Mars

#551  Postby DougC » Mar 20, 2015 1:36 pm

B.B.C. - Possible fatty acid detected on Mars
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Re: Curiosity rover on Mars

#552  Postby kennyc » Jul 10, 2015 11:02 am

Opportunity completes a 'marathon' on Mars:

Image
http://time.com/3757299/nasa-mars-rover-marathon/

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Re: Curiosity rover on Mars

#553  Postby newolder » Sep 12, 2016 3:48 pm

Sept. 9, 2016

The layered geologic past of Mars is revealed in stunning detail in new color images returned by NASA's Curiosity Mars rover, which is currently exploring the “Murray Buttes” region of lower Mount Sharp. The new images arguably rival photos taken in U.S. National Parks.

Curiosity took the images with its Mast Camera (Mastcam) on Sept. 8. The rover team plans to assemble several large, color mosaics from the multitude of images taken at this location in the near future.



Images and more @ NASA source

More raw images.
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Re: Curiosity rover on Mars

#554  Postby newolder » Jun 25, 2019 12:56 pm

Another belch/fart of that confounding methane gas reported by Curiosity.
NASA’s Curiosity rover has measured the highest level of methane gas ever found in the atmosphere at Mars’s surface. The reading taken last week at Gale Crater — 21 parts per billion — is three times greater than the previous record, which Curiosity detected back in 2013.

...

Nature source

Levels have returned to below 1ppb within a few days/sols of the peak.
JUNE 23, 2019
Curiosity's Mars Methane Mystery Continues

Updated at 5 p.m. PDT (8 p.m. EDT) on June 24, 2019:

Curiosity's team conducted a follow-on methane experiment this past weekend. The results came down early Monday morning: The methane levels have sharply decreased, with less than 1 part per billion by volume detected. That's a value close to the background levels Curiosity sees all the time.

...

NASA JPL link
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Re: Curiosity rover on Mars

#555  Postby Cito di Pense » Jun 26, 2019 9:03 am

I'm not wishing so hard for life to be found on Mars that I can't consider the possibility that methane in the martian atmosphere might be coming from outgassing of shallowly-buried fragments of a reletively-recent ice-rich comet impact. After all, Mars can get those kinds of impacts just as easily as Earth does, and comets have a smaller tendency to vaporize in the Martian atmosphere on the way in when they arrive.

This does not purport to demonstrate anything, but until you have ruled out everything else, or else found some microbes, there are easier explanations for methane in the Martian atmosphere than undiscovered microbes. Juju7 might have a different opinion, just for the sake of being difficult, but you know, fuck juju7.
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Re: Curiosity rover on Mars

#556  Postby newolder » Jun 26, 2019 10:43 am

These latest Curiosity reports are notably different to the ExoMars trace gas orbiter data from earlier this year (April report).
Initial results from the ExoMars Trace Gas Orbiter (TGO) have found little evidence of methane on the Red Planet, a potential sign of life, despite spotting the gas on several previous occasions.

The TGO originally reached Mars in 2016 with a key goal to gain a better understanding of methane and other trace gases in its atmosphere.

Methane has previously been discovered on both the planet’s surface and in its atmosphere but the satellite found nothing.

It uses spectrometers – NOMAD and ACS – to make high-resolution “solar occultation measurements” of the atmosphere.

...more at link

Energy & Technology source.

The sporadic nature of the combined observations only goes to show our lack in understanding of the methane pathways on Mars. Obviously, further investigation is required to pinpoint where, when and how the methane is sourced.
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Re: Curiosity rover on Mars

#557  Postby Cito di Pense » Jun 26, 2019 11:48 am

newolder wrote:Obviously, further investigation is required to pinpoint where, when and how the methane is sourced.


That's what they all say. I know, because I've been to the point of insisting that further investigation is required. Indeed, as long as there's some funding slapped on it, further investigation is inevitable.
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Re: Curiosity rover on Mars

#558  Postby newolder » Nov 12, 2019 5:20 pm

The methane "issue" is followed now by the mysterious behaviour of atmospheric oxygen at Gale crater observed over a few Solar cycles (martian years).

With Mars Methane Mystery Unsolved, Curiosity Serves Scientists a New One: Oxygen

For the first time in the history of space exploration, scientists have measured the seasonal changes in the gases that fill the air directly above the surface of Gale Crater on Mars. As a result, they noticed something baffling: oxygen, the gas many Earth creatures use to breathe, behaves in a way that so far scientists cannot explain through any known chemical processes.

Over the course of three Mars years (or nearly six Earth years) an instrument in the Sample Analysis at Mars (SAM) portable chemistry lab inside the belly of NASA’s Curiosity rover inhaled the air of Gale Crater and analyzed its composition. The results SAM spit out confirmed the makeup of the Martian atmosphere at the surface: 95% by volume of carbon dioxide (CO2), 2.6% molecular nitrogen (N2), 1.9% argon (Ar), 0.16% molecular oxygen (O2), and 0.06% carbon monoxide (CO). They also revealed how the molecules in the Martian air mix and circulate with the changes in air pressure throughout the year. These changes are caused when CO2 gas freezes over the poles in the winter, thereby lowering the air pressure across the planet following redistribution of air to maintain pressure equilibrium. When CO2 evaporates in the spring and summer and mixes across Mars, it raises the air pressure.

Within this environment, scientists found that nitrogen and argon follow a predictable seasonal pattern, waxing and waning in concentration in Gale Crater throughout the year relative to how much CO2 is in the air. They expected oxygen to do the same. But it didn’t. Instead, the amount of the gas in the air rose throughout spring and summer by as much as 30%, and then dropped back to levels predicted by known chemistry in fall. This pattern repeated each spring, though the amount of oxygen added to the atmosphere varied, implying that something was producing it and then taking it away.
...

Image

More @ NASA link
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