US EditionStudy Finds Space Travel Rapidly Accelerates Biological Aging, Raising Mars Mission Concerns
- A study led by UC San Diego, published on September 4, 2025, found that exposure to spaceflight speeds up the aging process in the blood-forming and immune-related stem and progenitor cells aboard the International Space Station.
- The research expands on the 2015-2016 NASA Twins Study and incorporates insights from a comprehensive body of 44 studies published by a leading consortium focused on aerospace medicine and biology, emphasizing the impact of space-related stressors such as microgravity and radiation.
- The team used AI-driven nanobioreactors on four SpaceX ISS resupply missions to track real-time changes showing HSPCs lost regeneration ability, incurred DNA damage, and activated normally silent genome regions.
- Twyman Clements, president of Space Tango, expressed enthusiasm about sharing the significant research findings with the broader scientific and space exploration communities, highlighting the collaborative nature of the project.
- The findings have important consequences for astronaut well-being and enhance our understanding of aging and cancer on Earth, leading to planned follow-up missions on the ISS and development of strategies to preserve the integrity of stem cells during prolonged space travel.
43 Articles
43 Articles
Study Finds Spaceflight Accelerates Ageing of Human Blood Cells
New research has identified yet another way that spaceflight tampers with the human body. A study involving samples flown on four SpaceX resupply missions to the International Space Station has revealed that space travel accelerates the aging of blood-forming stem cells crucial for blood and immune system health. The scientists in the NASA-funded study conducted real-time monitoring of stem cells from the bone marrow of individual donors to trac…
Human stem cells age more rapidly in space, study finds
While scientists are still working to understand the effects an extended trip to space can have on the human body, research in recent years has suggested that astronauts may experience some pretty dramatic changes on both the physiological and psychological levels. In the latest study led by a team at University of California San Diego, researchers found signs of accelerated aging in human stem cells that spent roughly a month in space. The rese…
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