The NASA director suggested that Mars and Venus could be terraformed with "giant shields" so that humans could live there.

21/01/2022
Credit: NASA
Credit: NASA

News! The director of NASA said this month that Mars could be terraformed, that is, it could be transformed into a planet that resembles Earth and where living things can live. Venus is also considered for terrestrial formation, despite the extreme temperatures on it. NASA said the two planets could be terraformed if a giant magnetic shield were used. The idea is unique so far and quite difficult to achieve, at least with the technology we have now. But it is not impossible. 

Dr. Green is who supported the idea. He is the director of the space science division of the planetary sciences, having held this position for more than 12 years and continues to be so today. 

First of all, one of the big problems on Mars is that it has an extremely thin atmosphere comparable to the Earth's atmosphere. The red planet has an atmosphere 100 times thinner than Earth. But even if a larger atmosphere were to form, it would not last more than a few years, and we would have to last for hundreds or thousands of years at least. 

Elon Musk has the idea of ​​deflecting a comet to Mars, so after the impact, Mars will gradually have a stable atmosphere. It will have a stable atmosphere, only for a few years. This is because Mars has a very small magnetic field, so the atmosphere cannot be held around Mars. A problem on Mars is that the planet has an average temperature of -63 degrees Celsius, a temperature that a human could withstand. It's really hard to bear, but it can be. 

On good days, even 20 degrees Celsius can be reached on Mars. The record temperature on Mars was 35 degrees Celsius. And the lowest fear on Mars (since measurements were made) was -143 degrees Celsius, a temperature that man can no longer withstand. That's exactly what NASA wants to change (the temperature) on Mars, to be more convenient for humans. The temperature would be clear above 10 degrees Celsius. 

"Stop the stripping, and the pressure is going to increase. Mars is going to start terraforming itself, "Dr Green told the New York Times in an interview. "The first level of terraforming is at 60 millibars, a factor of 10 from where we are now. That's called the Armstrong limit, where your blood doesn't boil if you walked out on the surface. If you didn't need a spacesuit, you could have much more flexibility and mobility, " he continues.

Accordin to Independent news: "The planetary community does not like the idea of ​​terraforming anything. But you know. I think we can change Venus, too, with a physical shield that reflects light. We create a shield, and the whole temperature starts going down. " Dr. Green said. 

"The solar system is ours, let's take it. That of course includes Mars and for humans to be able to explore Mars, together, with us doing science, we need a better environment," he said. 

"We put the Viking landers in a horrible place because we didn't know where to put them - we were just trying to put them down on the surface of Mars. It was like putting something down in the Gobi Desert. We should have put them down in Jezero Crater, in this river delta we're at right now with the Perseverance rover, but we didn't even know it existed at the time, " he continue. 

"One of the Viking experiments indicated there was microbial life in the soils, but only one of the three instruments did, so we couldn't say we found life. Now we'll really, definitely know because we're going to bring back samples. We didn't know it would need a sample return mission. " Dr Green said. 

Unfortunately, Dr. Green will retire from NASA management at the end of the year and it is not yet known who will replace him, but he will assist in the search for his replacement.

Article by: Andacs Robert Eugen, on 21 January 2022, at 02:58 am Los Angeles time

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