NASA confirms ISS emergency broadcast was a training exercise mishap, not a crisis; all crew members safe.

NASA clarified that an emergency broadcast from the International Space Station (ISS) was not an actual crisis but a training exercise mishap. The audio, mentioning decompression sickness, was mistakenly played on the livestream, causing a false alarm. All ISS crew members were safe and healthy during this incident, and a planned spacewalk will proceed as scheduled.