Science follows logic. Science believes in what can be proved. Science calls something a theory only if it can be replicated. Anything that is observed is not believed by science unless it can be observed again and again under the same circumstances. That is the basis of science. Science analyzes everything and then says that may be because of this, that happens. If it is proven science says that if this and that will happen.
These are called laws of science.
Singularity and laws of science-
While speaking of origin of universe scientists believe that in the beginning there was nothing. Not even space existed. What existed was singularity with zero dimensions. What existed before that singularity is not at all known. Please note that no body knows what existed before singularity. At zero time, the singularity started exploding. Let us not call it zero time but the minimum time that passed after zero. This explosion created all this mass in form of heavenly bodies that we observe. As these bodies traveled outward they created space. Therefore an infinite mass and energy was created from a point with zero dimensions called singularity. This is the origin of universe as believed now.
Will you believe this? This defies all the laws. Mainly the laws of conservation of mass and energy are violated here. But cosmologists have no other theory to explain about the origin of universe. At the time of Big bang the energy produced was so much that even today the stars are traveling outward defying gravity. Nothing is stopping. Everything is expanding. It is the expanding universe. You may find this difficult to believe but this is happening. That is why most of the scientists who study the universe and what it is, start thinking of god. Because nothing else can explain about how the universe originated.
How space was created?
When we look around us we take the space for granted. We know that space is the distance between tow objects. Or what lies between two objects. As things are scattered in the world there is space that occupies that. It is true for outer space that lies between tow stars. This space is three-dimensional. Was this space there since eternity? Who created the space? If no object is left in the cosmos what would happen to the space? Will it still remain? How Space Was Created?
We know that at the time of Big bang everything exploded out of a point called singularity. What most of us do not realize is that at that time there was no space. There was only this single point in the cosmos and nothing else. It is difficult to imagine and understand, isn't it?
As the mass and energy exploded out space was created. At this time there are billions of stars that are running away from us. The universe is expanding. This is creating more and more space. What lies beyond this space? Is there another cosmos/universe or more space? No body knows the answer to this question. According to Einstein one can never reach the edge of the space. This space is something like the surface of the earth. There are no edges. It folds on itself. So if you start looking or the edge of the space you will come back from where you began. Of course the distances are so vast that it is impossible for any mortal to think of doing this. Billions of light years make a very huge distance. This distance is unimaginable.
Next time you look at the sky begin thinking about the space, the stars and what lies beyond everything. You will forget your problems at home and work because you will feel you are so small compared to what is happening out there.