(Web Desk) – Mars resembles a dusty, dead, dry, dull planet. But science says otherwise. Science says Mars was wet and warm, with an atmosphere. And science says it has been humid and warm for billions of years, long enough for life to appear and develop.
But we still do not know for sure if a life has happened there. I understand that Mars and its ancient dwellings have indeed increased in recent years. Now that Spirit and Opportunity are gone, MSL Curiosity brings the load. (InSight is on Mars, but he does not look for evidence of life or habitation.)
Curiosity moves around Khalil Gail, seeking evidence that life lived billions of years ago. Gail crater has dried up the bottom of the lake and, according to scientists, this is the best place to look for evidence.
Christopher Haus is a professor of geology at the University of Pennsylvania. He is also a participating scientist in the mission of NASA's Mars Science Laboratory. In a press release from Penn State University, House talks about MSL's mission and what it's like to be involved daily with the groundbreaking mission. "Gail the crater looks like a pond," Haus said. , adding that the mission has found a very fine layer of mud in the crater. "The water would have been preserved for a million years or more."
Simulated image of Lake Mar Mars Gale
The Gail Crater was chosen as a target for curiosity because it is a tricky place. Not only is it a lake, which means there are minerals that can give clues about living on Mars but this lake has been filled with sludge.
This sludge has become a stone that is then eroded. The same process is what created Mt. Sharp, the mountain in the middle of the Gale Crater, and another object of the Curiosity charm. "But the whole system, including the groundwater that passed through it, continued much longer, maybe even a billion years or more," he said.
"There are broken bursts that show that water passes through these rocks much later, after the planet has not formed any lakes. "
House works with the Mars Science Laboratory Mars (SAM) and sedimentology and stratigraphy teams. The SAM team uses a tool that calculates rock samples and a mass spectrometer to measure molecules emitted by heated samples. Mass of molecules helps researchers identify the types of released gases.
House and other scientists are particularly interested in sulfur gases from sulphate and sulphide minerals, as the presence of reduced sulfur minerals such as pyrite, the most common sulphide mineral, would indicate that the environment could support life in the past. This is partly due to the fact that pyrite needs the presence of organic matter to form in sediment. Taking samples of curiosity near the base of Sharpe Mountain
House serves as a leader for the team of sedimentology and stratigraphy. As the name suggests, the team studies layers of rocks on the surface of Mars to try to understand the environment in which they formed. The home also participates in the tactical planning of the Rover.
Several times a month, Dom directs the teleconference with scientists from all over the world to plan the Curiosity operations for the next day on Mars.
"It was fun to include in day-to-day operations, solutions such as where to measure, or where to drive, or whether we need to prioritize a particular measurement for a different measurement, given the limited time on the surface,
"Every day is limited by the power the river has and how much energy the rover needs. a great opportunity to collaborate with scientists from around the world.
Although it seems to be moving slowly towards public observers, the speed of Curiosity's daily operations is quick and detailed.
According to House, we
"Every time we drive, we wake up in a whole new field of view with new rocks and new questions we have to ask," he said.
] This is like a new world every time you move, and so often you still think about the issues that happened a few months ago but you have to deal with the fact that there is a whole new landscape and you have to do and the science of that day. "
To be home, Mars is a fascinating world that we have already learned a lot "Mars is still a dynamic place, and we already know that it was probably habitable in the past."
"Missions like this have shown a habitable Mars environment in the past," said House
"Missions also showed Mars to continue be an active world with potentially methane discharges and geology, including volcanic eruptions, in the not too distant past. There is definitely a great interest in Mars as a dynamic earth world that is not as different from our Earth as some other worlds in our Solar System. "
The house is right. While Mars may look dry, deserted, cold and lifeless, it is much more similar to Earth than other worlds in the Solar System. Venus is a hellhole hole, Jupiter is a giant, radioactive gas ball, other planets and moons are dead, dead places away from the sunlight, and Mercury is just, well … Mercury. constantly expands our scientific understanding of Mars. In 2014, Rover finds spikes in methane, which are often associated with organic processes. Also in 2014, he discovered organic carbon compounds.
In 2013, Rover found evidence of an ancient stream on Mars, proving that in the past the water flowed to the surface.
Still strong from landing on Mars in August 2012. Its initial duration is 687 days, but it continues for more than 2500 days.
MSL has already revealed a lot about Mars and will continue to go to its radioisotope thermoelectric generator, the generator runs out of power. Everything we learn from his mission is a spoon.