Spanning nearly 435 miles across the surface, the valley stream is named Nirgal Vallis and experts said it was shaped by flowing water and impacts
Posted on 10/17/2019 7:27:27 AM PDT by MarvinStinson
ESA released stunning images of an ancient river in Nirgal Vallis that once flowed on Mars
By studying the surrounding craters, the branching remains are said to be between 3.5 and 4 billion years old
Detailed images of Mars reveal an ancient river that once flowed on the red planet.
Spanning nearly 435 miles across the surface, the valley stream is named Nirgal Vallis and experts said it was shaped by flowing water and impacts.
By exploring the characteristics of the surrounding craters, the European Space Agency has estimated the system’s age to be between 3.5 and 4 billion years old.
Spanning nearly 435 miles across the surface, the valley stream is named Nirgal Vallis and experts said it was shaped by flowing water and impacts
The valley, deemed one of the largest on Mars, sits south of the planet’s equator, which experts believe was ‘shaped by a mix of flowing water and impacts: events where rocks sped inwards from space to collide with the Martian surface,’ the Europe Space Agency (ESA) shared in a press release.
The images were captured by a spacecraft’s High Resolution Stereo Camera, which the ESA has employed to map the entire surface of Mars in full color and high resolution.
The area in the picture shows the western end of the river system, where it is slowly spreading out and dissipates.
(Excerpt) Read more at dailymail.co.uk ...
The Oompah Loompahs used to canoe that river until evil Climate Change happened.
Spanning nearly 435 miles across the surface, the valley stream is named Nirgal Vallis and experts said it was shaped by flowing water and impacts
If this was true, is there ANY chance there was once ANY kind of civilization that could be COMPLETELY covered now?
I have NO IDEA. That’s why i’m asking. :)
Scientists believe that Nirgal Vallis formed in a similar way to morphologically similar valleys we see on Earth. As there appear to be no branching, tree-like tributaries feeding into the main valley of Nirgal Vallis, it is likely that water was replenished on ancient Mars by a mix of precipitation and overland flow from the surrounding terrain.
The system may also have its roots in a process known as groundwater sapping: when water struggles to travel vertically through a medium, and so instead continually seeps laterally through material in layers beneath the surface.
We see this kind of mechanism on Earth in environments where surface material is very fine and loose and thus difficult for water to penetrate – largely silty, sandy, unconsolidated, and fine-grained environments, where lower layers of the surface are permeable and friendlier to water than those above.
No one would have believed in the last years of the nineteenth century that this world was being watched keenly and closely by intelligences greater than man’s and yet as mortal as his own; that as men busied themselves about their various concerns they were scrutinised and studied, perhaps almost as narrowly as a man with a microscope might scrutinise the transient creatures that swarm and multiply in a drop of water. With infinite complacency men went to and fro over this globe about their little affairs, serene in their assurance of their empire over matter.
If this was true, is there ANY chance there was once ANY kind of civilization that could be COMPLETELY covered now?
Check youtube ,some people think they see see Life Everywhere
I am not a geologist, so what do I know, but it seems to me like these large rivers come to stubby upstream ends with no real signs of smaller tributary rivers and streams flowing into them. It doesn’t seem consistent with being water carved.
I had heard theories years ago that the mars ‘canals’ were actually the result of the crust cooling, perhaps at such a rate that it left the surface ‘cracked’.
But honestly I have no idea.
For 68 years, I've always wondered what planetary impacts were. Now that I know, I can go peacefully and have eternal rest.
Any river rafting on Mars?
Interesting observation. When I looked again it more closely resembles scar tissue from a cut on skin.
That is my theory, fault lines from some source, maybe larger impacts that displaced the crust and have been blown by winds after the fact.
But I am hoping for more proof of liquid. Read an article yesterday that they may have found a lake with evidence of solution and evaporation of salts from the soil. This would indeed require a liquid of some sort.
lol
Not my ex in bed lol
Even the MOST gullible couldn’t find signs of life there!
ROFLMAO!!!!!!
Here's an explanation that makes sense, but the scale blows our tiny minds.
War of the Worlds?
Little green men’s fault!
Yup
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