• NASA astronaut Mike Fincke faced a sudden medical issue in space that left him unable to speak.
• The incident occurred while Fincke was dining on January 7, impacting ongoing mission activities.
• Medical evaluations have ruled out a heart attack, but the exact cause remains unknown.
• Fincke expressed hopes to return to space despite the incident causing distress among crewmates.
• The space agency is reviewing other astronauts' medical records for similar incidents.

NASA astronaut Mike Fincke recently shared details about a mysterious medical episode that occurred on January 7 while aboard the International Space Station (ISS). The 59-year-old claimed he was having dinner and preparing for a spacewalk when he suddenly became unable to speak. His crewmates quickly responded, and they contacted flight surgeons for assistance from the ground. “It was completely out of the blue. It was just amazingly quick,” Fincke stated during an interview from Houston's Johnson Space Center, emphasizing the rapid onset of his distressing situation, according to latimes, scmp, and channelnewsasia.

The episode reportedly lasted about 20 minutes, after which Fincke felt fine and has experienced no similar issues since. Doctors have ruled out a heart attack, and while Fincke was not choking during the incident, they explore other possible causes, which may relate to his extensive time in weightlessness—specifically, his 549 days in space. “It struck like a very, very fast lightning bolt,” he described, reflecting the suddenness of his medical crisis, according to latimes, scmp, and channelnewsasia.

Following the occurrence, NASA has initiated an investigation into Fincke's condition by examining other astronauts' medical records for any similar experiences. In the wake of his evacuation, which caused a planned spacewalk to be canceled—his first in partnership with crewmate Zena Cardman—Fincke expressed regret about the disruption, stating, “I’ve been very lucky to be super healthy. So this was very surprising for everyone,” according to latimes, scmp, and channelnewsasia.

Ultimately, Fincke has received encouragement from his colleagues and is optimistic about returning to space in the future, despite how the incident might have impacted their mission schedule. “This wasn’t you. This was space, right?” was a sentiment shared by his crewmates, reinforcing that he had not disappointed anyone during the unexpected situation, according to latimes, scmp, and channelnewsasia.