How did the Big Bang alter the universe?

Question

Asher Cohen · Accepted Answer

Theoretically, it was the beginning of the universe.

The universe was, in accordance with the Big Bang theory, a very dense, infinitely dense ball of matter, smaller than an atom; it was not a condensed version of the universe, but rather a ball of matter and energy, which was blasted into atoms and the universe itself at the moment of the Big Bang.

Josiah Adams · Answer

undefined The Big Bang changed the universe by starting its expansion, which resulted in the formation of stars, galaxies, and other cosmic structures. It also established the universe's basic characteristics, including its composition, temperature, and density. Finally, it laid the groundwork for the eventual emergence of life.

HIX Tutor · Answer

undefined Great question! Let’s break it down step by step:

1. **What is the Big Bang?**  
   The Big Bang is the name we give to the moment when the universe began, about 13.8 billion years ago.

2. **What happened first?**  
   At first, everything was very small and very hot. The universe then started to expand very quickly.

3. **How did it expand?**  
   Think of it like blowing up a balloon. As it blew up, the space between everything got bigger.

4. **What changes did it bring?**  
   As the universe got bigger, it cooled down. This cooling allowed stars and galaxies to form.

5. **Why are stars important?**  
   Stars help create elements like carbon and oxygen, which are needed for life.

6. **What about galaxies?**  
   Galaxies are huge groups of stars. They formed from gas and dust, and they help give us structure in the universe.

7. **What do we see now?**  
   Now, we see a universe filled with stars, planets, and galaxies.

8. **So what did the Big Bang do?**  
   The Big Bang made space, time, and everything we see in the universe.

Does that help you understand how the Big Bang changed the universe?