Help make Alexa smarter on Alexa Answers. Sign in with Amazon

Science

How many years has it been since the big bang?


Big Bang theory holds that our universe began 13.7 billion years ago, in a massive expansion that blew space up like a balloon. Our star, the sun, was formed some 4.6 billion years ago. The earth was formed 4.5 billion years. And, our species is only 200,000 years old.

{{ relativeTimeResolver(1658448971350) }}

LIVE
Points points 2
Rating

Similar Questions
Sign in to view all similar questions

Join Alexa Answers

Help make Alexa smarter and share your knowledge with the world

LEARN MORE