How Cold Can The Universe Actually Get?

Tonight, we drift slowly down the coldest staircase in all of existence. We begin in the chill of empty space, colder than any winter and yet warmed faintly by the leftover glow of the universe's first light, and then we find the one quiet place in nature that has somehow grown colder than space itself: a soft, enormous cloud around a dying star, resting a single degree above the coldest temperature that can exist. From there the cold runs lower still, into the strange chambers built by human hands, where matter has been stilled closer to perfect rest than anywhere in the heavens. This is a slow, gentle journey toward absolute zero, the floor beneath all things, and toward the quiet truth of why nothing in the universe is ever quite allowed to reach it. So how cold can the universe actually get, and what is the one last thing that keeps even the coldest place in existence from ever falling perfectly still? #sleep #relaxation #space #astronomy #absolutezero #boomerangnebula #coldestplace #deepsleep #spacedocumentary #fallasleep #cosmos #universe #noads #sleepmusic #432hz #spacefacts #nasa #blackhole #stars #insomnia