The fiery descent back to Earth subjects astronauts to extreme G-forces, raising the question: do astronauts still blackout during re-entry? While complete blackout is less common thanks to improved technology and training, the risk of G-force induced loss of consciousness (G-LOC) hasn't entirely disappeared.
G-forces during re-entry can push blood away from the brain, leading to greyouts (dimming of vision), tunnel vision, and potentially G-LOC. Modern spacesuits and specialized anti-G training, including techniques like muscle tensing and controlled breathing, help astronauts combat these effects. Advanced spacecraft designs also aim to minimize G-forces during re-entry.
Although rare, the potential for temporary vision impairment or even brief unconsciousness remains a factor in space mission planning. Ongoing research focuses on further mitigating these risks, ensuring astronaut safety during this critical phase of space travel.
