Audio from a routine training exercise was accidentally played on a public live feed on Wednesday night, causing concern on social media about the possibility of an emergency on the International Space Station. The glitch happened at 6:28 p.m. ET on Wednesday while ground teams were in the middle of a training exercise involving a crew member who experienced a medical emergency due to decompression sickness. People listening to NASA’s public live feed were able to hear a short exchange from the exercise, which was then quickly shared on social media, causing concern for the crew’s wellbeing. I…