An astronaut in need of medical care is on the way back to Earth. The ailing astronaut departed the International Space ...

Researchers have identified bradycardia-an abnormally low heart rate–as a symptom of xylazine-opioid overdose.

Four astronauts are set to depart the International Space Station Wednesday amid a health concern. The unprecedented early ...

Nasa and SpaceX have conducted a first-of-its-kind medical evacuation from the International Space Station today. Watch live ...