"China's Zebrafish Journey to Tiangong: A Space Station Experiment"

China plans to send zebrafish to its Tiangong space station as part of research into the interaction between fish and microorganisms in a closed ecosystem, as well as studying bone loss in astronauts. This is not the first time fish have been sent to space, as NASA's Aquatic Habitat and Soviet Union's Salyut 5 space station have previously conducted similar experiments.