jsc2021e019404 (1/29/2021) --- A preflight close-up image of a single aquarium bag containing eight of the squid paralarvae. The bags are connected to pumps that will inoculate the squid with the luminescent bacteria during the spaceflight. Understanding of Microgravity on Animal-Microbe Interactions (UMAMI) examines the effects of spaceflight on the molecular and chemical interactions between beneficial microbes and their animal hosts. Image courtesy of Rachel Ormsby.