Sunday , June 26 2022

Chinese Newsletter – Herald News – It's easier to find signs of ancient life on Mars or Earth


Scientists who are involved next NASA say that it is easier to find signs of ancient life on Mars or Earth.

A six-wheeled robot will land on this red planet in 2021, with the specific purpose of finding evidence of past creatures. He will look for clues of rocks that could be 3.9 billion years old.

Researchers say it's very difficult to find 3.9 billion years ago on Earth, but there may be better conservation conditions on the Mars.

This is due to the dynamic process of the ground, where the rocks are hacked and constantly recycled, so life remains are eliminated. But the Red Planet stopped the process early in its history.

"For example, we do not believe Mars has a plate drift process that is often tested in Earth's history," said Ken Willford from the NASA Jet Propulsion Laboratory (JPL) in California.

"Most rock and ground records have been destroyed by moving under the seabed and even the rocks that remain on the surface are warm up and squeeze, and these are not on Mars. "

"So the old rock on Mars is probably better than a new rock," he told BBC News.

NASA: It's easier to find signs of ancient life on Mars or Earth.The Jezero crater shows strong evidence of past water activity orbits.

The new Mars will be placed near the crater called Jezero near the equator of Mars, and satellite observations show that there is a deep lake once.

Scientists hope their signs will remain in the sediment if microbes live in or around the water body. Today sediment can be easily destroyed.

One of the key targets will be carbonate deposits, which appear to be similar to ancient lake cliffs.

"Carbohydrates are minerals that are wearing out of the water. The beauty of this process is that they combine all the substances in the water when they spoil, so everything that is done can be saved. 39; I lived there. Minerals, "explains Briony Horgan from the University of Purdue in Indiana.

Ideally, the Mars will find accidents to structures that look like stromatolites, which are carbonate vessels built by microorganisms.

The roaming will drill the samples along the river bank to choose the most likely location, and put the samples into a jar and then leave it on the ground to recover it later.

NASA and European counterparts are currently planning to restore 40 samples of wandering with each other in the early 1930s.

Dr. Williford and Dr. Horgan discusses Mars Rover's forecasts at the Fall of the United States Geophysical Union (AGU) Conference in Washington. This is the largest annual collection of Earth and space scientists.

NASA: It's easier to find signs of ancient life on Mars or Earth.The new Mars design was designed according to the design robot of the Ashamed Robot that landed on Mars in 2012.

This car will be a rough copy of Curiosity that landed in the Gale crater in 2012.

It will use the same "Skycrane" technology, which provides a very high supply accuracy to the previous machines. In addition, this has added an extraordinary additional feature. Engineers have developed a dynamic mapping system of the Terrain-Relative Navigation name that will bring more accuracy to landfill.

Ken Farley, the chief scientist of the mission, told the UU conference that the route after the Mars car landing was planned.

The robot will have a sophisticated steering system that will enable it to calculate the best and most direct route between two points independently.

This should accelerate the speed of achieving different targets. "With good land, we'll practice more than 100 meters a day," said Dr. Farley at BBC News.

Source link