Boom bang the heat’s goneNASA, ESA and The Hubble Heritage Team (STScI/AURA)By Shannon HallTHE coldest place in the universe marks the grave of two stars. So says a team that trained the ALMA telescope on the spot, known as the Boomerang Nebula. Point a telescope almost anywhere in the cosmos and you’ll see that it is at 2.7 kelvin – cold enough to...