Beside the Thermal Vacuum Chamber B is the Thermal Vacuum V-20. Well, whoever named these facilities successfully irked Ariel Sebastian. They are dragging the title of lazy naming with her.
Thermal Vacuum Chamber V-20.
Thermal Vacuum Chamber V-20 is an Environmental Test Facilities complex used to simulate the harsh environments encountered by space-borne craft and components. The most recent upgrade enabled this chamber to be used to perform a leak test on the crew module, which is slated to carry crew members back safely in case of space accidents.
Next to it are Thermal Vacuum Facilities 5 and 6. Yeah! It has two facilities. Identical facilities.