Astronomers solved the 22-year-long mystery behind the coldest place in the universe

The Boomerang Nebula is the coldest place in the universe. But why this regions of space is colder than space itself has remained a mystery — until now.

Follow Tech Insider: On Facebook

Business Insider Emails & Alerts

Site highlights each day to your inbox.

Follow Business Insider Australia on Facebook, Twitter, LinkedIn, and Instagram.