Scientists have redefined gravity to explain the Big Bang and perhaps change our picture of the earliest moments of the cosmos. This new framework of "quantum gravity" may explain aspects of the Big Bang that Albert Einstein's 1915 theory of gravity, general relativity, fails to account for — maybe even doing away with the challenging concept of a singularity existing prior to the dawn of the universe.
Proving the concept of quantum gravity is something of a holy grail for physicists, as it would bridge the gap between the explanation we have of the universe on vast cosmic scales (general relativity) and on tiny scales (quantum physics).
