For the first time in 25 years of continuous crewed operations, an astronaut has been medically evacuated from the ...

Forget all the scientific advances, the most popular question asked of astronauts is much more primal: How do you use the restroom? Suction is needed to counteract the lack of gravity, and it's not ...

Space travel alters hemoglobin gene expression, increasing fetal globin production and shifting erythropoiesis to a primitive type. Low gravity in space increases the risk of coagulation disorders, ...