Does the universe have a center? Explain. Yes, the centre of the universe was given by two famous theories; geocentric theory (Earth as a centre of the universe) and Helio-centric theory (Sun as a ...

Give two evidences to show that the universe is expanding.The two evidences to show that the universe is expanding are red shift and big bang theory Redshift: According to Doppler effect, if the so...

i.                 How did the universe begin?

“If Einstein is correct, then, the universe is created from a black hole,” said by one of the two fathers of black hole, Stephen Hawking. Here he means to say that, Einstein has once said that the universe is expanding at a very high rate with respect to time, if this is true then.

If we go back in time with the same rate as the time is increasing, then we will find that there will be space time singularity that means our universe could have been made by the evaporation process of Black hole....