Will a year in orbit change the human blueprint?
In short: NASA is preparing an unprecedented biological experiment using the world's only twin astronauts. By separating them—one on Earth and one on the International Space Station—scientists aim to decode how space travel physically alters our bodies.
The mission will last a full year, tracking whether the twins remain identical after prolonged exposure to microgravity and cosmic radiation. The goal is to identify specific biological shifts that occur during long-duration spaceflight.
By comparing the two siblings, researchers hope to isolate the effects of the space environment from shared genetics. These findings are critical for developing safety protocols to protect future generations of astronauts traveling beyond low Earth orbit.
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Sources
- Summary by Intellect · source: ScienceCasts: Separated at Launch
- Also: NASA — ScienceCasts - NASA
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