Space and time appear at the Big Bang singularity, so questions of what happens "before" the Big Bang are not well defined. As far as science can tell, there is no before; the Big Bang is the ...

Related: What happened before the Big Bang? Around 13.7 billion years ago, everything in the entire universe was condensed in an infinitesimally small singularity, a point of infinite denseness ...

When our current observed universe originated in an explosive Big Bang Singularity event, the states of matter there in terms of temperatures, densities, and other aspects were extreme.

It's thought that prior to the Big Bang, the entirety of the Universe existed in a singularity, a point of infinite density where spacetime is infinitely curved. But the known laws of physics ...

“Thanks to Einstein, we know that time and space are intertwined and, since the dawn of time in the singularity of the Big Bang, the universe has been expanding,” he added. “This expansion ...

Our current understanding of the universe is based on the Big Bang model. The model proposes that approximately 13.8 billion years ago, the universe came into existence as a singularity and ...