Payloads Cold Atom Lab (CAL) Science Module 2 (SM2): The crew powered off the CAL SM2 to allow EXPRESS rack 6 updates to be performed, then powered the CAL SM2 back on.  The CAL produces clouds of atoms that are chilled to about one ten billionth of a degree above absolute zero — much colder …

Source: ISS Daily Summary Report - 10/20/2020