Agnirva Space Premier League - Expedition #32547: Measuring Radiation in Space: The Phantom Torso Experiment

Radiation exposure is one of the biggest risks astronauts face during long missions. To understand how much radiation reaches the body’s vital organs, NASA launched the Phantom Torso experiment during Expedition 2 aboard the ISS. Led by Dr. Gautam Badhwar at the Johnson Space Center, this study used a unique and eerie tool—a life-sized human model called the Phantom Torso.

The Phantom Torso is a detailed replica of the human body, complete with real human bone and synthetic tissue-equivalent materials. Inside, it houses over 300 sensors that measure radiation doses to critical organs like the brain, lungs, stomach, and spine.

Why is this important? Space radiation can damage DNA and increase the risk of cancer and other illnesses. Understanding how it affects different parts of the body helps scientists design better shielding for spacecraft and protective gear for astronauts. This data is crucial for planning future missions to the Moon and Mars, where exposure is even more significant.

The findings from this experiment shaped NASA’s strategies for radiation protection. It also led to improvements in dosimetry—methods of measuring radiation—and supported ongoing research into space health risks.

Through this innovative approach, the Phantom Torso experiment brought us one step closer to making deep space exploration safer for everyone.

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