The impact of long-term spaceflight on cerebrospinal fluid and perivascular spaces in astronauts and cosmonauts

An international team of researchers has conducted an extensive study of the impact of long-term space flight on the eyes and brains of astronauts. In their paper published in Proceedings of the National Academy of Sciences, the group describes their study of MRI scans of both astronauts and cosmonauts before and after venturing into space and the differences they found between the two groups.