Scientists have known that space travel can produce changes in vision, but precisely why was a mystery until a former astronaut and recovered cancer patients allowed researchers to measure pressure inside their brains. (KERA)
Cassandra Pollock was a state politics reporter for the Tribune. She joined the Tribune full-time in June 2017 after a fellowship during the 85th Texas Legislature. Pollock spent her first two years at... More by Cassandra Pollock



