Theoretical physicists James Hartle and Stephen Hawking, for example, proposed that rather than having a strict beginning as we would understand it, the universe evolved out of a "no-boundary" state ...

A new theory suggests our universe and a time-reversed twin could emerge together. This quantum approach avoids singularities ...

By applying CPT symmetry, Turok and Boyle propose that the Universe, along with an anti-universe, forms a symmetric pair. In ...

At one-one-thousandth of a second after the Big Bang, the great annihilation event should have wiped out all matter, leaving a universe of only radiation. Why still don't know why ...

An IIT scientist proposes a twin universe born alongside ours, where time flows in reverse. This theory challenges the Big ...

The large-scale structure of the universe refers to vast, interconnected patterns of galaxies, galaxy clusters, and superclusters organized into filaments, voids, and walls that comprise the ...

The universe may have been born out of nothing, with an "anti-universe" twin where time runs in the opposite direction—rather than exploding from an infinitely small and dense point, or "singularity." ...