Space

The universe is infinite… That is why I totally believe that there is life in other planets.
We cannot be the only ones in an infinite universe. With space journeys scientists have been discovered many more planets that may be useful in a future in which we the mankind have to look for a new planet to live in.
Those journeys have brought a lot of benefits such as the weather broadcast, wireless internet, cable TV, satellite signal for cell phones, discoveries of new planets in which there could be water and a good environment for life.
Those journals also have brought consequences to the Earth in this case is about pollution, they are polluting the Earth with every space travel they made. For that reason, we have to be aware about what the NASA is doing to help the Earth.
Picture taken from: http://i324.photobucket.com/albums/k344/cacoo200/space/SpaceArtWallpapers09.jpg