Payloads Cold Atom Lab (CAL): The crew prepared the CAL facility in preparation for the Slice-7 Removal and Replacement (R&R) activity. The CAL produces clouds of atoms that are chilled to about one ten billionth of a degree above absolute zero, much colder than the average temperature of deep space. At these low temperatures, atoms …

Source: ISS Daily Summary Report - 7/13/2021