Big Bang is a past horizon, though in practice our view is also limited by the opacity of the universe at early times. So our view cannot extend further backward in time, though the horizon recedes in space. If the expansion of the universe continues to accelerate, there is a future horizon as well. English astronomer Fred Hoyle is credited with coining the term "Big Bang" during a 1949 BBC radio broadcast, saying: "These theories were based on the hypothesis that all the matter in the universe was created in one big bang at a particular time in the remote past." It
The Whole Shebang: A State-of-the-Universe(s) Report Bang theory were able to move faster than the speed of light. He further explains that "space" itself was being created at the same time as its astronomical objects therein. These objects and "space" together were expanding at this speed greater than light, at least for the first fraction of a second. Ferris writes for the reader to understand that "space" was "created" in the Big Bang and did "not" preexist. He explains that all "space" and matter in the universe were in a "singularity" before the Big Bang even started. This means a "curvature of spacetime" that's immeasurably large.