Nasa astronaut finally reveals medical crisis that triggered emergency evacuation of ISS
The medical evacuation was declared back in January
Nasa astronaut says cause of medical emergency unknown as Artemis II Moon mission nears
Doctors have ruled out a heart attack or choking, but every other medical condition remains on the table
Nasa astronaut shares new photo of twisted purple growth on board International Space Station
Social media users were left puzzled by the growth - though the reality was rather more mundane
