Big Bang query: Mapping how a mysterious liquid became all matter
Monday, January 14, 2019 - 09:20
in Astronomy & Space
The leading theory about how the universe began is the Big Bang, which says that 14 billion years ago the universe existed as a singularity, a one-dimensional point, with a vast array of fundamental particles contained within it. Extremely high heat and energy caused it to inflate and then expand into the cosmos as we know it—and, the expansion continues to this day.