coldest object ever - that title goes to Bose-Einstein condensates. Bose-Einstein condensates are a dilute gas of bosons that can be cooled to temperatures as cold as 500 picoKelvin (a picoKelvin is 10–12 and a microKelvin is 10–6).

 coldest object ever - that title goes to Bose-Einstein condensates. Bose-Einstein condensates are a dilute gas of bosons that can be cooled to temperatures as cold as 500 picoKelvin (a picoKelvin is 10–12 and a microKelvin is 10–6).