Sat. Oct 23rd, 2021


Perseverance has successfully hit a rock twice on Mars.

At the press conference Friday, NASA has revealed more about the Perseverance Rover The first successful collection Martian Rock, which was Confirmed Monday. Successful sample of the basic first step of a 10-year plan to bring Martian Rock to Earth for intensive testing.

There was a surprise from the conference that, Since that first collection, Perseverance has actually collected a second sample core from the same Rock NASA scientists said the rock was so beautiful (i.e. scientifically attractive) that they repaired it twice. It is hoped that such specimens will make it to the earth By 2030s, One of the most ambitious manned experiments conducted in space, and will provide insights into Martian geological history And the tantalizing possibilities of ancient Martian life.

“I am just happy to be here Not one But the first two samples from another planet have been prepared and kept as samples of the first official candidate to be sent back to Earth through future missions.. “One of the reasons we are exploring Mars is because it contains a rock record that was untouched for about 3.5 to 4 billion years. Mars has no plate tectonics. So its early history is well preserved at the rock level of the planet’s surface.

Perseverance is a rock core.

The first attempt to sample the rock failed, As previously reported by Gizmodo. Although preliminary indications suggest that a rock sample was taken, later analysis revealed There were no samples in the tube. NASA suspects that the failure was due to the weakness of the target rock, which seems to be the case The coring breaks down during the process.

NASA’s next target was a rock west of Jijero Crater, Where perseverance lands in February and it is the site of an ancient lake, which has dried up for a long time. A river delta on the west side of Jijero, Which scientists think is the most interesting place Search For biological signatures – evidence of life – probably in the form of fossilized microbial mats, similar Primitive life on earth.

Perseverance has a rover in the science mission To change To the west Delta, picking up stone samples on the go. The drilling process is: Perseverance There is a coring drill at the end of the robotic arm, which is placed on the rock target. None of the rock surfaces are abraded to get rid of Frozen cradle. The rock is dug, it is excavated and placed in a narrow place White sample tube. The arm then pulls the filled sample tube In the body of the rover, which has a sample processing center. There, the sample is illustrated, measured, sealed and stored. And all of this is happening 246 million miles away from human controllers.

“We all boast of continuing to do things that are difficult and challenging ourselves, but we know, And What we have done proves that by continuing to work as a team we can truly achieve these amazing things, Press conference.

First, failed The sample site is called Roubion and is located on a flat Martian paving rock. The second and third sites were stronger Rock on nearby Artuby Ridge. That The rock is called Rochet and its main locations are Montadenier and Montagnac. NASA scientists said That Robion can be visited later And tried again, because it’s still a site of great scientific interest.

Crater Lake.

Persuasion sub-project scientist Katie Stack Morgan says that Based on current observations, the team immediately believes that ancient lava flows originated in both rock and rock. (Whether or not Jijero’s rock is sedimentary is a matter of controversy Fire / Volcano.) They determined it based on both Both stone and fine visible texture-Scale texture.

“They show signs of permanent interaction with groundwater,” Stack Morgan said. “If these rocks experience water for a long time, These rocks may contain habitable niches that could support ancient microbial life.

Spectral analysis of rock core using various instruments in rover, With PIXL instrument, Small inclusions of calcium, sulfur and salt have been identified in the rock.

“We collected a stone from the floor of the Jijero Crater that is the origin of the volcano or volcano, and it contains salt. The presence of salt indicates that the rock was subject to water. The water spreads through the rocks and Since it is porous and later evaporated, It leaves this saline residue, ”said Yulia Goreva, a scientist investigating the return of the sample.

Back on Earth, such a sample would be analyzed to determine its exact mineral composition, its age and its chemistry. The smallness of the salt will reveal something What Jijero Crater was like wThe chicken was covered in water, Goreva added.

It is A huge, metaphorical sigh of relief that perseverance is able to center the rock at all. Martian surface Behaving in unexpected ways, such as the Insight Mars Lander team found out when their “sesame” digger got In a hopeless way Stuck Dust was on the surface and had to be discarded.

Once the specimens reach Earth, they will be carefully handled to ensure they are in the end. It’s not every day that you get the funds and manpower to bring rock from one Remote Earth on our planet. It also marks a forerunner in NASA’s long game: finding people on Mars so we don’t have to do this whole robotic regamroll forever.

More: NASA generates oxygen on Mars, setting the stage for cruise missions



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