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Our universe was born about 13.7 billion years ago in a massive expansion that blew space up like a gigantic balloon. That, in a nutshell, is the Big Bang theory, which virtually all cosmologists ...

Did The universe really begin with a bang, a bounce? The theory that the universe is both possibly having endured a sudden ...

The big bang poses a big question: if it was indeed the cataclysm that blasted our universe into existence 13.7 billion years ago, what sparked it? Three Perimeter Institute researchers have a new ...

In the search to understand how the universe came to be, a new theory is rewriting the script. Instead of one massive, fiery birth like the Big Bang, this idea suggests the cosmos has been growing ...

There is no specific measure of the temperature of the Universe as a whole as it began, but at 10⁻³⁶ seconds after the Big Bang, it had cooled to just 10²⁸ Kelvin.

At the Big Bang, distances and volumes drop to zero, all parts of the universe fall on top of each other and the energy density of the universe becomes infinite.

On May 20, 1964, on a hilltop in New Jersey, an unlikely little structure called the Holmdel Horn revealed telltale signs of the Big Bang, and the birth of the universe we live in.