Did You Know: Space – Where did the universe come from?
Everything that exists all began to form around 13.8 billion years ago, during an event called the big bang. The big bang started the creation of the universe and everything in it, including us!
How do we know how old the universe is?
Universe math
Scientists are able to figure out and guess the age of the universe by studying how fast it is expanding today.
They can also look at the oldest objects in space, which helps them to find out how things were made and when.