The Coldest Place in the Universe

The Boomerang Nebula is colder than the void of deep space itself. It remains the only known object with a temperature lower than the cosmic microwave background radiation.

While space is famously freezing, the Boomerang Nebula is even chillier at a near-absolute zero temperature. It reaches this extreme cold because its gas expands and cools rapidly as it rushes away from a dying star. This unique process acts like a celestial refrigerator, making it the coldest natural spot discovered by astronomers to date. It is a haunting, frozen monument to the final gasps of a star.