After its initial appearance, it apparently inflated the "Big Bang" , expanded and cooled, going from very, very small and very, very hot, to the size and temperature of our current universe. While we can understand how the universe we see came to be, it's possible that the Big Bang was not the first inflationary period the universe experienced. Is the standard Big Bang theory the only model consistent with these evidences? Gravity waves are distortions in the fabric of space-time predicted by Albert Einstein's theory of general relativity. When all of the antennas come on line later this year, ALMA will penetrate the curtains of dust and gas that shroud galaxies, swirl around stars, and stretch through the expanses of interstellar space and conjure even finer details for graphic renderings of cosmic inflation after the big bang.
Determining the age of the universe
The Big Bang theory explained in four diagrams. It continues to expand and cool to this day and we are inside of it: incredible creatures living on a unique planet, circling a beautiful star clustered together with several hundred billion other stars in a galaxy soaring through the cosmos, all of which is inside of an expanding universe that began as an infinitesimal singularity which appeared out of nowhere for reasons unknown. Well, to be honest, we don't know for sure.