NASA astronaut Sunita Williams was carried on a stretcher by the NASA team upon her return to Earth due to the physiological effects of her prolonged stay in microgravity. After spending approximately 286 days aboard the International Space Station (ISS), her body had adapted to the weightlessness of space, leading to muscle atrophy and bone density loss. These changes necessitated assistance during re-acclimation to Earth’s gravity.
Extended Mission and Return
Williams and fellow astronaut Barry “Butch” Wilmore embarked on their mission on June 5, 2024, aboard Boeing’s Starliner capsule, initially planned as an eight-day journey. However, technical issues with the spacecraft extended their mission to over nine months. They returned to Earth aboard a SpaceX Crew Dragon capsule, safely landing off the Florida coast.
Physiological Effects of Prolonged Spaceflight
Extended exposure to microgravity leads to several physiological changes:
-
Muscle Atrophy: Without gravity, muscles used for posture and movement weaken over time.
-
Bone Density Loss: Bones lose minerals, becoming more fragile, a condition known as spaceflight osteopenia.
-
Fluid Redistribution: Fluids shift towards the head, potentially causing vision problems and facial puffiness.
-
Balance and Coordination Issues: The vestibular system, responsible for balance, is affected, leading to dizziness and orientation challenges upon return.
These changes explain why astronauts like Williams require assistance, such as being carried on a stretcher, immediately after landing.
Current Health Status and Rehabilitation
Following standard protocols, Williams and Wilmore are undergoing a 45-day rehabilitation program to readjust to Earth’s gravity. This regimen includes physical therapy, exercise, and medical evaluations to monitor recovery.
Despite the physical challenges, both astronauts have maintained positive spirits. Williams expressed gratitude for the support received and is optimistic about her recovery.
In summary, Sunita Williams’ transport on a stretcher post-landing is a standard precaution due to the body’s adaptation to microgravity. She is currently in good spirits and actively participating in a rehabilitation program to regain her strength and adapt to Earth’s environment.