• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
HealthNASA

Astronaut’s medical mystery stumps doctors and NASA after he suddenly lost the ability to speak in space

By
Marcia Dunn
Marcia Dunn
and
The Associated Press
The Associated Press
Down Arrow Button Icon
By
Marcia Dunn
Marcia Dunn
and
The Associated Press
The Associated Press
Down Arrow Button Icon
March 27, 2026, 1:47 PM ET
In his image provided by NASA, NASA astronaut Mike Fincke is helped out of the SpaceX Crew-11 capsule after they re-entered the Earth in a middle-of-the-night splashdown near San Diego.
In his image provided by NASA, NASA astronaut Mike Fincke is helped out of the SpaceX Crew-11 capsule after they re-entered the Earth in a middle-of-the-night splashdown near San Diego. Bill Ingalls/NASA via AP, File

The astronaut who prompted NASA’s first medical evacuation earlier this year said Friday that doctors still don’t know why he suddenly fell sick at the International Space Station.

Recommended Video

Four-time space flier Mike Fincke said he was eating dinner on Jan. 7 after prepping for a spacewalk the next day when it happened. He couldn’t talk and remembers no pain, but his anxious crewmates jumped into action after seeing him in distress and requested help from flight surgeons on the ground.

“It was completely out of the blue. It was just amazingly quick,” he said in an interview with The Associated Press from Houston’s Johnson Space Center.

Fincke, 59, a retired Air Force colonel, said the episode lasted roughly 20 minutes and he felt fine afterward. He said he still does. He never experienced anything like that before or since.

Doctors have ruled out a heart attack and Fincke said he wasn’t choking, but everything else is still on the table and could be related to his 549 days of weightlessness. He was 5 ½ months into his latest space station stay when the problem struck like “a very, very fast lightning bolt.”

“My crewmates definitely saw that I was in distress,” he said, with all six gathering around him. “It was all hands on deck within just a matter of seconds.”

Fincke said he can’t provide any more details about his medical episode. The space agency wants to make sure that other astronauts do not feel that their medical privacy will be compromised if something happens to them, he said.

Tests are inconclusive

The space station’s ultrasound machine came in handy when the event occurred, he said, and he’s gone through numerous tests since returning to Earth. NASA is poring through other astronauts’ medical records to see if any related instances that might have occurred in space, he said.

Fincke identified himself late last month as the one who was sick to end the swirling public speculation.

He still feels bad that his illness caused the spacewalk to be canceled — it would have been his 10th spacewalk but first for crewmate Zena Cardman — and resulted in an early return for her and their two other crewmates. SpaceX brought them back on Jan. 15, more than a month early, and they went straight to the hospital.

“I’ve been very lucky to be super healthy. So this was very surprising for everyone,” he said.

Fincke stopped apologizing to everybody after NASA’s new administrator Jared Isaacman ordered him to stop.

“This wasn’t you. This was space, right?” his colleagues assured him. “You didn’t let anybody down.”

Ever the optimist, he’s holding out hope that he can return to space one day.

The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Department of Science Education and the Robert Wood Johnson Foundation. The AP is solely responsible for all content.

The Fortune 500 Innovation Forum will convene Fortune 500 executives, U.S. policy officials, top founders, and thought leaders to help define what’s next for the American economy, Nov. 16-17 in Detroit. Apply here.
About the Authors
By Marcia Dunn
See full bioRight Arrow Button Icon
By The Associated Press
See full bioRight Arrow Button Icon

Latest in Health

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
  • Group Subscriptions
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Health

HealthDietary Supplements
Ritual Vitamins Review (2026): With Insight from an Expert
By Emily PharesMarch 27, 2026
42 minutes ago
HealthDietary Supplements
The 4 Best Matcha Powders of 2026: Taste Tested by Our Team
By Emily PharesMarch 27, 2026
1 hour ago
HealthNASA
Astronaut’s medical mystery stumps doctors and NASA after he suddenly lost the ability to speak in space
By Marcia Dunn and The Associated PressMarch 27, 2026
2 hours ago
LawMark Cuban
A toddler needed a life-saving flight, and the insurer said no. Then Mark Cuban called
By Catherina GioinoMarch 26, 2026
23 hours ago
HealthDietary Supplements
Seed Probiotic Review (2026): Expert Tested and Approved
By Christina SnyderMarch 26, 2026
1 day ago
wyle
HealthTV
‘The Pitt’ shows an ER getting shut down by a cyberattack that is totally true to life
By Jeffrey Tully, Christian Dameff and The ConversationMarch 26, 2026
1 day ago

Most Popular

C-Suite
'I didn’t want anybody shooting me': Five Guys CEO gave away $1.5 million bonus to employees over botched BOGO burger birthday celebration
By Fortune EditorsMarch 25, 2026
2 days ago
AI
Exclusive: Anthropic acknowledges testing new AI model representing ‘step change’ in capabilities, after accidental data leak reveals its existence
By Fortune EditorsMarch 26, 2026
18 hours ago
Environment
Vail Resorts CEO says it’s time to think beyond the $1,000 ski pass that helped build the empire
By Fortune EditorsMarch 26, 2026
2 days ago
Success
Palantir’s billionaire CEO says only two kinds of people will succeed in the AI era: trade workers — ‘or you’re neurodivergent’
By Fortune EditorsMarch 24, 2026
3 days ago
Commentary
The Treasury just declared the U.S. insolvent. The media missed it
By Fortune EditorsMarch 23, 2026
4 days ago
Success
The scientist who helped create AI says it’s only 'a matter of time' before every single job is wiped out—even safer trade jobs like plumbing
By Fortune EditorsMarch 26, 2026
1 day ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.