Grand Canyon of the moon was made in a few minutes

The two gorge, near the Antarctica of the moon, are comparable to the Grand Canyon, both depth and length.

Unlike the terrible cracks in Arizona, the two -moon gorge, known as Vallisschrödinger and Vallis Plans, is straight as if the lunar crust was cut off with a knife.

Unlike the Grand Canyon, it was carved for millions of years by the flow of the Colorado River. Baris Surdinger and Valis Plank were formed in just a few minutes of 15 -mile meteors about 3.8 billion years ago.

Certainly, when these vast lunar grooves were carved, it took less time than baking frozen pizza.

The impact of 66 million years ago and comparable to the killing of the dinosaur was a punch of up to 15 miles, and a crater of about 200 miles wide was discovered. In the process, it discharged a huge rock Fujirado -the planetary scientist calls Ijeda Dalay -CRASH drops in a series of staccato to create a depth of 1.5 miles or more and a length of 165 miles or more. I did.

“They are really extraordinary,” said David Cring, a scientist at Houston and a scientist at the Planetary Institute. “These things were engraved within 10 minutes, which took 5 to 6 million years for the Grand Canyon to engrave, indicating the energy of the impact event.”

With a new analysis, Dr. King, his colleagues Daniel Karenbone and the Imperial College London Gareth Collins explain how the gorge was formed in a huge rock rain. I built it. They used photos taken by NASA's monthly reconnaissance orvitors to show a series of craters along the gorge and calculate the speed and direction of the debris.

“Imagine a kilometer or 5 kilometer rock that collides on the ground at more than 2,000 miles per hour,” said Cring. “Each of these blocks produces a crater of about 20 kilometers in diameter, and they hit the ground -van, van, van, van.”

Scientists have calculated that the energy required to create two gorge valley is more than 130 times that of the explosions of all nuclear weapons on earth today.

Their survey results are published in a paper published in Journal Nature Communications on Tuesday.

The gorge also suggests that the asteroids or comets that come in will collide at an angle, despite the fact that the crater itself is almost circular.

The straight line between VALLISSCHRODINGER and VALLIS PLANCK is emitted from the Schrödingerbasin Crater. However, scientists noticed that even if the lines were expanded, they would not intersect at the center of the crater.

Instead, the intersection is south. Scientists have said that the rocks of the universe are likely to collide.

Jennifer Anderson, a professor of global science at Winona State University, Minnesota: “These huge crater rays refers to the rising range of the crater.”

It indicates that the meteor has arrived from the south, and the carts of the fragments were mainly kicked north away from Antarctica.

This is an encouraging discovery for ARTEMIS, a return program for NASA. This is because the area near Antarctica, who wants to land astronauts to land, suggests that it is not covered with debris from the impact of Schledinger. Anti -pole -A better, much older impact is exposed to the surface.

Dr. Anderson said that he had launched a crater of less than 1 feet in the sand, in line with the small laboratory experiments conducted several decades ago.

“It's the farthest Ijeda on the surface to tell you what happened at the earliest time at the crater event.”

What is not so certain is how the impact created a long and narrow rock flow on the emission rays instead of a more uniform cascade in all directions.

“We are still discussing the origin,” said Dr. Cling.

The emission rays may have been due to the other unevenness of the previous craters and terrain. “The two existing craters may have focused on these debris on these rays,” said Kling.

Dr. Anderson said that such rays occurred in her small experiments, and she could not explain the phenomenon.

“In contrast to low density, we can see that there is a more dense area area with materials,” she said. “I don't know what everyone still knows, except that nature is messy.”