From its inception, ISS payloads for for-profit microgravity manufacturing have been considered as a driver for human spaceflight funding. A bit of Spacehab hi

From its inception, ISS payloads for for-profit microgravity manufacturing have been considered as a driver for human spaceflight funding. A bit of Spacehab history with a classic retro illustration ;) http://www.astronautix.com/s/spacehab.html http://www.astronautix.com/s/spacehab.html One potential application moving forward are the very large, low defect protein crystals grown in the APCF Advanced Protein Crystallization Facility - Protein Crystallization in Microgravity https://www.nasa.gov/mission_pages/station/research/experiments/249.html https://www.nasa.gov/mission_pages/station/research/experime...