Space Travel Ages Human Cells at Accelerated Rate, NASA Study Finds
WASHINGTON – A new study from teh National Aeronautics and Space governance (NASA) reveals that space travel induces accelerated aging in human cells, raising concerns for the long-term health of astronauts on extended missions. The research, published in the Journal Cell Stem Cell, demonstrates that exposure to the harsh habitat of space damages blood-forming cells, compromising their ability to function and regenerate.
The findings represent a critical step in understanding the physiological toll of space exploration and underscore the need for preventative measures as humanity aims for longer and more aspiring missions, including potential journeys to Mars. According to Dr. Catriona Jamieson, director of the sanford Stem Cell Institute at the University of California, San Diego, and lead author of the study, “Space is the ultimate stress test for the human body.” The accelerated aging observed could significantly impact astronaut health and mission success.
Researchers utilized artificial intelligence-powered imaging tools to monitor changes in human cells during four spacex missions to the International Space Station (ISS). cells responsible for producing blood and supporting the immune system where exposed to the space environment for periods of 30 to 45 days. Analysis revealed a deterioration in cellular function, including DNA damage and the shortening of telomeres – protective caps on the ends of chromosomes that naturally shorten with age.
The study showed that these cells lost their capacity to create healthy new cells. While some damaged cells exhibited signs of recovery upon return to Earth, the initial impact of space-based stressors like radiation and microgravity on cellular aging is undeniable.Researchers now intend to analyze molecular changes in astronauts during spaceflight to develop targeted medical or genetic interventions designed to safeguard human health during prolonged space travel. This research could pave the way for new strategies to mitigate the adverse effects of space exploration and ensure the well-being of future space travelers.
