Coldest Place in the Universe, Galaxy & Earth (Boomerang Nebula)

The Coldest Place in the Universe, Galaxy & on Planet Earth (Boomerang Nebula) Intergalactic emptiness is only 2.725 K, or less than three Kelvin above absolute zero. The Boomerang Nebula, though, is even chillier. The Cosmic Microwave Background, a remnant of the intense Big Bang, bathes all of space in light that heats anything it … Read more