On Earth, there are more than 5 million people who have Parkinson's disease.
Research conducted aboard the International Space Station may shed light on this protracted neurodegenerative condition and aid in the development of preventative and therapeutic measures.
In this video, European Space Agency (ESA) astronaut Alexander Gerst examines and takes pictures of the LRRK2 crystals while NASA astronaut Serena Auon-Chancellor provides narration.