What created the universe?
Our universe began with an explosion of space itself - the Big Bang. Starting from extremely high density and temperature, space expanded, the universe cooled, and the simplest elements formed. Gravity gradually drew matter together to form the first stars and the first galaxies.
How did the universe begin from nothing?
The Big Bang was the moment 13.8 billion years ago when the universe began as a tiny, dense, fireball that exploded. Most astronomers use the Big Bang theory to explain how the universe began. But what caused this explosion in the first place is still a mystery.
What came before our universe?
Georges Lemaître proposed in 1927 that the universe started as a singularity and expanded through the Big Bang [source: Soter and Tyson]. According to Einstein's theory of relativity, time only came into being as the primordial singularity expanded toward its current size and shape.
How come the universe exists?
Krauss's theory implies that there could not have been nothing because there has always been something: first there was gravity and the quantum vacuum, and out of that was born the universe as we know it.
Who created our universe?
Why is Sun called god?
Who created space?
Who named the earth?
Was the universe once nothing?