Scientists have sent microscopic worms to the International Space Station (ISS) in an effort to study human health during long-duration space travel. The experiment, led by the University of Exeter in England, is designed to study how living organisms respond to the harsh space environment. The worms are called C. elegans nematode worms, a tiny roundworm that measures around 1 millimeter in length and is fast-growing and genetically tractable. They will be placed in a mini lab called the Petri Pod and will spend around 15 weeks inside this environment while being exposed to zero-gravity and radiation of outer space. Researchers will monitor the worms’ health using miniaturized cameras to capture stills and time-lapse videos.