麻豆淫院

A team of researchers with a variety of backgrounds and affiliated with multiple institutions in the U.S. has taken a realistic approach to looking at the question of whether Mars could be terraformed. In their paper in the journal Nature Astronomy, the group suggests that the time has come to look at the means by which Mars could be terraformed, and then whether such a task should be undertaken.

Over the past century, a host of figures from scientists to science fiction writers have tackled the issue of terraforming Mars鈥攄oing things to the planet that would make it habitable for humans. Currently there are two main questions surrounding the issue: Whether it should be done if possible, and whether it is possible at all.

In a new study, researchers argue that the latter issue should be addressed first, because the first issue would be moot if the answer is no. They created an outline of sorts that could be used to begin assessing what it would take to terraform Mars.

The team suggests any attempt to terraform Mars would almost certainly have to start with an effort to heat the planet. Possible means for doing so include putting solar sails in place or dispersing nanoparticles into the planet's atmosphere to hold in heat from the sun. Once the planet was heated by approximately 30掳C, they suggest, likely over many years, carbon dioxide would be released from the poles, further helping to warm the planet鈥攁nd making the atmosphere thicker.

Once the planet was heated sufficiently, microbes could be introduced that would produce oxygen. Once that process was complete, the planet could then be tended by adding hardware to monitor and tweak the environment and chemicals and other materials as needed. Eventually, plants and animals could be introduced, and then at some point, human life could be supported.

The researchers acknowledge that it is still not possible to determine whether Mars could be terraformed, but enough is known to begin the process of experimenting here on Earth in ways that could provide answers for Mars. They also note that anything learned along the way could provide valuable lessons in how to clean up our own planet and keep it habitable.

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