The before-and-after images reveal the shocking impact of spending nine months stranded in space, leaving many stunned.
NASA astronauts return to Earth after extended mission
Two NASA astronauts have finally returned to Earth after spending nine months in space.
Barry Butch Wilmore and Sunita Suni Williams landed aboard the SpaceX Dragon spacecraft on March 18.
Their mission, originally planned for a shorter duration, extended due to technical delays.
The astronauts splashed down off the Gulf Coast near Tallahassee, Florida. After landing, they were immediately taken away on stretchers, highlighting the intense physical toll of prolonged space travel.
The effects of space on a NASA astronaut’s body after being stranded for nine months
NASA closely monitors astronauts’ health before, during, and after missions, becaue of Extended time in space impacts the human body in numerous ways.
Wilmore and Williams are currently undergoing medical tests at NASA’s Johnson Space Center in Houston.
Their bodies are adjusting to Earth’s gravity for the first time in nine months.
The transition comes with several potential health concerns, including muscle loss, fluid shifts, and vision problems.
Visible physical changes after months in orbit
Before and after photos of the astronauts suggest significant changes.
While, some observers noted a gaunt appearance and possible weight loss.
Experts say prolonged exposure to microgravity can lead to fluid buildup in the head. This can put pressure on the eyes and optical nerves, potentially causing blurry vision.
NASA calls this condition Spaceflight Associated Neuro-Ocular Syndrome (SANS). While many astronauts recover, some experience lasting effects.
Additionally, the length of the mission plays a crucial role in determining recovery time.
Muscle atrophy and weight changes due to microgravity
Microgravity weakens muscles over time. Even with strict exercise regimens, astronauts lose muscle mass and struggle to maintain weight. This explains why Wilmore and Williams were unable to walk upon landing.
They also follow high-calorie diets to combat muscle loss, but prolonged weightlessness still causes atrophy.
Additionally, NASA expects their physical condition to improve with rehabilitation, but full recovery can take weeks or even months.
Fluid shifts and facial swelling in astronauts
Astronauts experience an upward fluid shift due to the lack of gravity.
This can cause puffiness in the face, a condition known as Spaceflight Venous Thrombosis (SVT). The effect is similar to being upside down for extended periods.
Fortunately, NASA reports that most astronauts regain their pre-mission fitness levels within 45 days. However, severe cases can take longer, sometimes up to a year.
Cognitive effects and recovery timeline
The return to Earth is also mentally challenging.
Changes in brain pressure, stress, and disrupted sleep patterns can affect cognitive function.
Studies show some astronauts experience slowed reaction times and memory issues post-mission.
Retired British astronaut Tim Peake spoke about this adjustment. “For me, going into space was no problem at all, but the first two days on Earth were rough,” he shared. “Butch and Suni will be feeling it right now. Their vestibular systems are off, making them feel dizzy and nauseous. It takes a few days to adjust.”
NASA continues to study the long-term effects of space travel. Wilmore and Williams will follow a structured rehabilitation program to regain strength.