Where+can+we+live?+(essay)

=**__Where can we live?__**= If we were to live in another planet, the most important thing is how easily you can get air. For example if we had to live in another planet we would need trees (oxygen.) We could possibly live on Mars; however Mars has a little amount of oxygen, very low air pressure, due to the thin atmosphere. Also another possible place we can live is in one of Jupiter’s moons which is “Europa.” Europa has liquid (water), also due to the oxygen surrounding the atmosphere. Mercury is the only planet closest to the Sun. Although Mercury is not larger than the Earth. Since Mercury is so close to the Sun the temperature is about over 170 degrees. Mercury has an incredibly thin atmosphere. Mercury is so small, it is even smaller then moon from other planets. Therefore Mercury has no moons. No human being can live on Mercury do to no oxygen, high temperature. Venus also known as “earth’s twin“ has an incredible reflection from the sun. In the west coast side many individuals can see Venus, and they call it the “evening star.” The atmosphere of this planet is mostly made up of carbon dioxide. We cannot live on Venus, because of the high temperatures, waterless planet, dusty, and extremely rocky. Venus has no moons, therefore no oceans. Mars also known as “the red planet.” The atmosphere of Mars contains carbon dioxide, but also a little amount of oxygen. Mars has about 1% of Earth’s pressure (atmosphere.) Astronomers have discovered water and it has been frozen due to hemisphere winters. Mars also contains a big number of volcanoes. There could be a possible chance for us to live in Mars, but the affect will be it has only a little amount of oxygen. Jupiter is a big planet compared to Earth. Jupiter’s atmosphere contains hydrogen, and helium. Jupiter’s moons are twice the mass of Earth’s moon. Jupiter has many powerful storms going on, on its surface. We cannot live on Jupiter, because of the huge storms. The second largest planet in the solar system is Saturn. Since Saturn has rings the planet has a great diameter. Saturn’s atmosphere contains clouds and storms. This is the only planet that is denser than water. Saturn‘s moons are larger than Earth’s moons. Saturn would not be recommended for us to live. The toxic atmosphere, coldness, high gravity and extreme pressure. Uranus is four times Earth’s diameter. Also Uranus is also twice as far from the Sun as Saturn. The atmosphere contains methane. This planet became the first new discovered planet. Uranus’s axis is tilted at 90 degrees. Uranus has five large moons. No human can live on Uranus do to coldness, no oxygen, and no solid surface that we could stand on. Neptune is even more away from the sun then Uranus. Neptune has visible clouds. “The great dark spot” is where a storm is held. Neptune, for centuries had eight moons revolving. Neptune does not have a solid surface; therefore you cannot live on Neptune. Also the thick atmosphere has hydrogen, helium and methane. Pluto also known as “the dwarf planet” and one of its moons “Charon” is two thirds of Earth’s moon. Pluto has a few moons now which was discovered in 2005. Pluto is not suitable for life, because there is no breathable air. The atmosphere is very thin, and contains nitrogen, methane and carbon monoxide. That mix of toxic is not good for humans.