The future of the Human Species - Part 2:Where next?

Written by K.A.Cassimally

Many scientists are currently exploringrepparttar idea of going to live on Mars. Mars isrepparttar 127656 nearest planet to Earth and scientists actually think thatrepparttar 127657 red planet resembled our Earth some million years ago. Some other scientists fromrepparttar 127658 NASA Ames Center have already startedrepparttar 127659 creation of a ‘Mars town’ and many others are in fact already experimenting it. Of course, these experiments are done on Earth itself but this ‘Mars town’ has an environment practically alike to that of Mars. Andrepparttar 127660 perfect place forrepparttar 127661 conduction of this experiment is in Texas, USA.

The astronauts working in these towns wear their space suit and also do everything they would really have to carry out if they ever go to Mars inrepparttar 127662 future.

But Mars would be, like Earth a temporary place for humans. Whenrepparttar 127663 Sun starts engulfingrepparttar 127664 planets, Mars will disappear barely hours afterrepparttar 127665 earth. So Mars only seems to berepparttar 127666 ideal place to spreadrepparttar 127667 human species. It is also a good location to send humans if ever there is a disaster on Earth. By saying disaster, I mean asteroid collision and things like that.

If we, humans do not want to disappear whenrepparttar 127668 earth or mars get swallowed up, we will have to go and live beyondrepparttar 127669 solar system. But are there any planets outside our solar system prepared to support life? Astronomers’ answer is: “If Earth can support life, why can’t other planets do same too? Astronomers have already discovered a Jupiter-like planet orbiting a Sun-like star so why not an Earth-like planet orbiting a Sun-like star next?” Astronomers clearly think that, yes, there has to be other planets alike to Earth waiting to be colonised out there. And maybe, these planets will inrepparttar 127670 future hold our species.

The future of the Human Species - Part 3: How do we engineer an Earth-like environment?

Written by K.A.Cassimally

The process of making an unearthly world more earth-like forrepparttar purpose of supporting human life is called teraforming - Steven Wintergerst.

Teraforming Mars isrepparttar 127655 only way we, humans can live and reproduce thus starting all over again onrepparttar 127656 red planet. As stated above, teraforming transforms any world unlike Earth into an inhabitable place for humans. Of course we cannot convert another planet, Mars for example, 100% into Earth. However Mars must resemble Earth inrepparttar 127657 following aspects: 1.Thickenrepparttar 127658 small existing atmosphere and make it compriserepparttar 127659 important gases required for life, in their needed volume. 2.A new magnetosphere should be set up. A magnetosphere will protect inhabitants and every other object on Mars from being beamed with cosmic rays from outer space. All lives are in danger of being destroyed by cosmic rays as they may destroy DNA bonds of common life. 3.Makerepparttar 127660 temperature more or less similar to that of Earth. As you know, Mars is colder than Earth asrepparttar 127661 red planet is further away fromrepparttar 127662 sun that Earth is.

Some issues however cannot be changed. The main ones are: 1.Gravity of Mars is much lower than that of Earth. If ever humans settle there, they will have to cope with this. They will use much less effort to move about on Mars. But they will then be condemned to stay there unless they exercise regularly. This is simply because their muscles will become weaker and weaker and smaller and smaller in size. These muscles will not be able to cope withrepparttar 127663 much larger effort needed to walk on Earth. 2.Mars is dead. They are no forests nor any bush. In fact there are no greens. Mars is forced to remain as this unless we re-melt its core (that’s a joke byrepparttar 127664 way).

As written above, Mars has a small atmosphere and it should be prevented from completely vaporizing off. One proposed strategy to preventrepparttar 127665 vaporization is to put satellites around Mars but only just outsiderepparttar 127666 planet’s orbit. Whenrepparttar 127667 satellites fly nearrepparttar 127668 atmosphere, they will pullrepparttar 127669 thin atmosphere. Whenrepparttar 127670 same satellites following their own orbit go further away from Mars,repparttar 127671 atmosphere will fall closer torepparttar 127672 planet thanks to Mars’s gravity. The latter has pulled its atmosphere back down. When this process is done over and over again,repparttar 127673 Martian atmosphere will thicken.

Another problem is a magnetosphere. A magnetosphere is a region of space surrounding in this case, Mars. The magnetosphere is thus dominated byrepparttar 127674 object's magnetic field so that charged particles (found in cosmic rays) are trapped in it. Mars doesn’t have any such protection and we should try to set one up. Because I don’t have any extremely good ideas about how to solve this problem, what I am going to say may seem like science fiction but who knows… How about installing giant electromagnets in strategic places of Mars? These will act as a big magnet and this is exactly whatrepparttar 127675 magnetosphere is.

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