LaDissertation.com - Dissertations, fiches de lectures, exemples du BAC
Recherche

English presentation

Dissertation : English presentation. Recherche parmi 298 000+ dissertations

Par   •  2 Mars 2017  •  Dissertation  •  625 Mots (3 Pages)  •  624 Vues

Page 1 sur 3

Introduction :

Living on the earth for a long time man has done damage. The earth becomes more and more fragile. In the pursuit of the spatial discovery the man discovered Mars which was like Earth at the beginning but which suffered damage. The idea of ​​being able to live on March one day become more and more relevant for that of the inhabited missions are foreseen in the coming years. So is there ever life on Mars and what would it be like to live on this planet.

Summary and commentary

In this article it is explain that a lot of studies are made on mars by some intelligences like the Rovers and Curiosity . So they learn that If life existed on Mars, it would have had to deal with harsh radiation that is present on mars —and any traces of that life might only be found deep under the soil today. They show that if life ever exist on mars it will have to face a lot of obstacles . The challenges for living things if they exist on Mars started billions of years ago, when the planet, for whatever reason, lost its magnetic field . And this exposed the planet surface to all of the radiation and The atmosphere was being blown away. This complicates the evolution of a biosphere. That type of radiation tends to break up organic molecules . If life appeared on Mars in the past, when the planet might have been wetter, with a thicker atmosphere, then organisms could have gotten a foothold .That is, life could have then adapted to a higher-radiation environment over time and retreated deeper underground for protection  . Besides protection from radiation, life also needs liquid water as a good sign Curiosity the last rover sent found evidence that water can bubble to the Martian surface and turn to frost but even though Curiosity found carbon molecules and water , that doesn't necessarily mean that life existed, even in the past . And also if we were ever able to live on mars there will be some similarities with earth like the differents type of seasons and the scientist saw that If you were to live in the northern hemisphere, you'd enjoy about seven months of spring, six months of summer, a little more than five months of fall and only about four months of winter. (A year on Mars is about 1.88 Earth years, and a day lasts a little more than 24 hours). The differents problems people can have on mars are : The temperatures can also change dramatically within a single week. Mars' temperature variations often result in powerful dust storms, which can sometimes shroud the entire planet after just a few days and The No. 1 thing an astronaut would be worried about is the radiation from space. But there ain’t oly bad things about mars there a beautiful view the daytime sky generally has an orange tint to it because of all the dust ,the area around the sun is blue. The surface of Mars offers up a few great opportunities for sightseeing. If we were to completely colonize Mars, there are certainly places that would become national parks .

Conclusion 

Eventually it could have life on Mars scientists have some elements but can not at the moment fully confirm it a lot of research are done to get there. And living on Mars could be a bit disturbing at first but man has the ability to adapt it has been seen with the stays in space (the ISS) so if thanks to the studies and efforts provided, Man arrives reach and colonize this will be an enormous advance for humanity. So are we finally going to colonize Mars?

...

Télécharger au format  txt (3.4 Kb)   pdf (31.8 Kb)   docx (8.9 Kb)  
Voir 2 pages de plus »
Uniquement disponible sur LaDissertation.com