Did anything come before the Big Bang?
In the beginning, there was an infinitely dense, tiny ball of matter. Then, it all went bang, giving rise to the atoms, molecules, stars and galaxies we see today. Or at least, that’s what we’ve been told by physicists for the past several decades.
What exists in the universe?
The universe (Latin: universus) is all of space and time and their contents, including planets, stars, galaxies, and all other forms of matter and energy.
Did space and time exist before the Big Bang?
The statement that space and time did not exist prior to the Big Bang appears to present a logical impossibility, at least with respect to time. Any physical event implies change, and change presupposes — or would logically require — the existence of time. Or not?
Was the universe hibernating before Big Bang?
The universe was hibernating until something set it in motion. This idea says that the pre-Big Bang universe was a small, flat, high-pressure space that was “metastable,” or stable until it found an even more stable state — the way a house of cards might sit perfectly solid forever until a breeze came through.
How does inflation explain the Big Bang theory?
It explained where the “bang” behind the Big Bang came from and how the cosmos got so big. Rapid inflation in every direction also explained why the universe we now observe is so homogeneous, and why the temperature of the background radiation left over from that primordial blast is uniform, in every patch of the sky, to one part in 100,000.
What happened before there was a universe?
Before there was an Earth, there was just a big cloud of gas and dust floating out in the universe. Before there was a universe well, before that is a point that physicists spill a lot of ink over. We don’t know what happened before the Big Bang gave birth to the universe, but the smartest people in science have plenty of fascinating theories.