Boomerang Nebula
The Boomerang Nebula (PGC 3074547) is a protoplanetary nebula located in the constellation Centaurus. The nebula lies at an approximate distance of 5,000 light years from Earth. It has a temperature of only 1 K (-272.15°C or -458°F) and is currently the coldest known place in the universe. The Boomerang Nebula is also known as … [Read more…]