Facts about space
No life on other planets. Why is there life on earth only?
Living atmosphere is only on earth, water, air, and some etc.
We are not completely sure that there is no from of life on any of the other planets and that is one of the things that space exploration is trying to find out.
But we do know that for life to exist, certain conditions must present. All living things require certain things like light, water, food, oxygen and right temperature.
But do all these conditions that are necessary for life exist on any other planet? It does not seem that way, judging by what we know so far about conditions on the other planets.
Venues planet
Venus is more like earth than any other planet, but the surface is approximately 800forein heat degrees. Life as we know it could not exist there.
Jupiter and Saturn
Planets like Jupiter and Saturn are covered by very thick layers of clouds made up of gasses that are poisonous to us. Each planet seems to have some conditions that either make life impossible or do not have the condition necessary for life.
Why gravity on earth not the same as in space?
Every single object in the universe pulls on ever other object. This is called gravitation, or gravity. But the strength of that pull depends on two things.
Firstly let’s take a human being on the earth. The earth has more matter than the human being, so its gravity pulls him to the earth. But the earth behaves as if all its matter were at its center. The strength of gravity at any place, therefore, depends on the distance from the earth’s enter. The strength of gravity is far greater at the seashore than at the top of mountain. Supposing a human being goes some distance up into the air away from the earth, the pull of the earth’s gravity will be even weaker.
When people out into space, they are away from the earth’s gravitational field. There is no pull at all. They are in a condition of weightlessness. And this is why, in rockets and space capsules, weightless astronauts and objects float about in the air.
Live happy on the earth and protect environment.
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