Thursday 5 March 2015

Is gravity there everywhere in Space?



The earth has a gravitational force of 9.8m/s and it is acting on you constantly. It doesn't affect you in a way that you would notice since we are used to it. In outer space there isn't any gravity according to most humans but science has a different opinion. Science or particularly Physics talks about dark matter and how much we don't know about it.

Dark matter is the darkness that we see in Space but cannot perceive it. According to scientists, the amount of objects or celestial bodies visible to us accounts for only 5% of the total area of Space. The rest is covered with undiscovered darkness. If the darkness in space were nothing, stars and galaxies would be flung around and our solar system wouldn't have lasted for even a few minutes. But since its been 13 billion years, there has to be something holding everything in place.

That something is "Gravity". This gravity may not be the same 9.8 m/s but it is definitely there that is holding all the galaxies and stars in place. Sure all celestial bodies change position slightly but if there were no force, these bodies would be flying around.

Newton's first law says that objects in motion must continue to be in motion unless an external force is applied to it. This external force in the universe is gravity in the form of space. There is another theory that suggests that everything in Space is falling. We don't see it or feel it because nothing is stationary in Space.

This question came to my mind when I was looking at newton's first law. Also a space documentary got me thinking in this direction. The comments section is open for your opinion.

And as always.............

Thanks for reading!

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