Friday, June 2, 2023

We knew that Mars had seas. We now know something else about perseverance: even great rivers

It is no longer surprising that Mars was filled with water millions of years ago, but there is still much to be learned about the Martian hydrosphere. New images from the pirate Perseverant can help us in this task.

the river Delta. Researchers at the Jet Propulsion Lab (JPL) have published new images that shed light on what Martian rivers were like in the past. The photographs were taken by the vehicle as they passed through another notable hydrological structure: the river delta.

From streams to streams. A NASA pirate was able to photograph the old river bed from a location in Crater Lake. In a collage of individual images taken by optical instruments, a series of rocks and boulders stands out. The shock of these pieces, experts explain, is their great size.

“It is [rocas] They indicate the great energy the river carries and carries away much debris. The more powerful the flow of water, the more easily it can move large pieces of material,” Libby Ivo, JPL researcher, explained in a press release.

This contrasts with the geological evidence of the presence of a hydrosphere on Mars that we have had so far. Until now, bodies of water known as stagnant water (oceans and lakes) or small streams and rivers have been discovered as another Martian curiosity.

“beach” on Mars. The river bed in the photo is slightly like an undulating beach, perhaps hence why it shares a name with a beach in South Wales: Skrinkle Haven. As the researchers explain, the rock “bands” were probably formed by the flow of water, although they are not sure of the exact mechanism, as they hesitate between two hypotheses.

One possibility is that they correspond to changes in the height at which the river was situated; he describes the second river as “twisted,” the course of which is bent in places by rapids.

What experts teach is that these structures were of higher origin and that Martian wind and atmospheric dust were responsible for “cutting” their height.

Pinestand. New observations about the hydrological past of Mars come not only from the reservoir but also from deep in the hills. About 450 meters from Skrinkle Port is Pinestand Hill, the forerunner of another new image captured by Perseverance.

It is a hill that rises to about twenty meters and, according to the hypothesis of the physicists, could have been formed by the fluvial forces of its environment, although researchers continue to contemplate other possibilities.

“These layers are anomalously for terrestrial rivers,” noted Ivo. “But you see, this kind of orography is a very common river.”

Mastcam-Z These mosaic images are created from many snapshots taken by the hacking tool Mastcam-Z. This camera works as the “eyes” of Perseverance and it is the one that gives us a good part of the images that come to us from this pirate.

Investigators in charge of the mission continue to investigate the photographs that come to us from this camera, but also the usefulness of information obtained from other instruments. Gadgets like RIMFAX, the ground radar is capable of exploring what lies underground under the wheels of persistence.

“What we are excited about here is that we have entered a new era in the history of Jezero. And it’s the first time we’ve seen this kind of environment on Mars,” Katie Stack Morgan, the second researcher on the project, also explained in a press release. “We’re thinking about rivers differently than ever before.”

Lake Jezero Those responsible for NASA have chosen this Martian crater to explore the continuum, because it seems to be one of the most interesting places to explore the geological traces that have been left by the water activity of the red planet.

The location of this crater will also be the first to reach Earth, if all goes according to plan with the Mars Sample Return mission (the Chinese mission has not been overtaken by the US and European space agencies).

The arrival of these samples will mark another milestone in the exploration of our solar system and will help us answer the great question that we think about all the time about Mars: Does it ever bear life?

Nation World News Desk
Nation World News Desk
Nation World News is the fastest emerging news website covering all the latest news, world’s top stories, science news entertainment sports cricket’s latest discoveries, new technology gadgets, politics news, and more.
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