Earth where our human beings and other life forms are standing on, living on are the third planet in the Solar System. People named it as Earth or people whom loved it so much they used to call it as Mother Earth. Generally, It carried almost 7 billions human beings, other billion life forms such as animal, trees or even bacteria. According to Astronomers, It was the best planet for human to live on where far enough to our Sun, so all life won't be frozen or close enough, so we won't be burned and dead. For example, the first planet in the Solar System which named "Mercury" where is too close to the Sun and the temperature may be greater than Earth hundredfold.
As said by the scientist, Earth is the best planet for us, and of couse, we also have the same thinking. Its main functions is providing us the best place to live on, giving us resources to spend for our needs. However, we are destroying it so badly and making it become difficult to live by releasing the harmful substances to environment. So far, Earth is still the best choice for human beings to live in this Milky Way. How about future?
With the increasing of polution, food crisis, rising of Global Warming or any disarters which are out of human control, it might be risky for the human life on Earth. Hence, all nations should spend more on their national budget for astronomy in order to discover other planet where same like Earth. Definitely it is necessary for human to find other planets to live in order to avoid human extinction which absolutely will be happening in the future.
However, with the development of advanced technology, we might control the natural desarters or what human can't control in the past. But, it will only happen in the future which we are unable to figure out. So, finding new planets for our next generation should be the first priority misson for current generation in order to keep the human values spreading endlessly.
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