11. The Boomerang Nebula: Coldest Known Place
The Boomerang Nebula holds the record for being the coldest natural place in the universe, with temperatures just one degree above absolute zero. This cosmic deep freeze is caused by the rapid expansion of gas from its dying central star. The Boomerang Nebula’s extreme chill makes it a fascinating laboratory for studying the physics of cold in space. Source: ESA/Hubble