👉 The Boomerang Nebula is about 5,000 light-years from Earth in the direction of the Southern constellation Centaurus. Measurements show the nebula has a temperature of only one degree Kelvin above absolute zero (nearly -460 degrees Fahrenheit). The Boomerang Nebula is so cold due to the rapid expansion of gas in the nebula, which cools it down to near-absolute zero temperatures. This rapid expansion is believed to be caused by a smaller companion star that plunged into the heart of a larger re

114K views · 582 reactions | Astronomers solved the 22-year-long mystery behind the coldest place in the universe. | Insider Science | Facebook