Japan Aerospace Exploration Agency, or JAXA, recently developed Aquatic Habitat (AQH) and delivered to the International Space Station last week. The Aquatic Habitat (AQH), which is a high-tech aquarium with Medaka fish (Oryzias latipes) in it, was brought into the International Space Station aboard the third Japanese H-II Transfer Vehicle or HTV cargo vehicle flight, also called Konotouri, which was launched on July 20.
Though it is not the first time for fish in a special aquarium to be taken into space, it’s the first to be installed in a space station. The specialized fish tank may serve as a relaxing pastime for the crew at ISS but its main purpose is for studies and research on how marine life is affected in space.
Medaka fish are ideal specimens for many reasons. They are transparent, making it easy to view the inner workings of their organs. They also breed quickly and easily in microgravity environments, enabling multi-generation studies. The AQH will reside in the Japanese Experiment Module, or JEM, which is also known as Kibo, or “hope” in Japanese. More details at NASA