S01E04 Fading // Last Tango / Zurich

The sculptures resembles meteorites and have a green surface with a grainy structure. The color was made by mixing Acrystal, a type of fast-drying plaster, with chlorella vulgaris, an algae powder. The algae is one of 137 microorganisms whose color value is searched for in space by scientists, in the hope of finding potential life on other planets.