James Welsh
Radiation oncologist and researcher specializing in space radiation and its biological effects; author and co-author of works on space radiation and translational research in radiation oncology.
Best podcasts with James Welsh
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Dec 31, 2025 • 48min
James Welsh et al., "Weathering Space" (American Scientist 114:1 2026)
James Welsh, a radiation oncologist and researcher, delves into the radiation hazards of deep-space missions. He highlights how past missions benefited from Earth's magnetic shielding but warns that future explorations, especially to Mars, face significant risks. Topics include the intricacies of ionizing radiation and its biological effects, the limitations of conventional shielding, potential strategies like layered materials, and even intriguing ideas like using fungi for protection. Welsh paints a vivid picture of the challenges that await astronauts beyond our planet.
Nov 14, 2024 • 54min
Space travel: the health effects of space radiation and building a lunar GPS
James Welsh, a radiation oncologist and author, discusses the biological impacts of space radiation on astronauts, revealing surprising resilience in human bodies compared to sensitive spacecraft electronics. He stresses that electronic failure may limit space missions more than health issues. Physicists Biju Patla and Neil Ashby present their innovative approach to establishing a lunar time system using atomic clocks, aiming to facilitate navigation and coordination on the Moon, with aspirations for a similar system on Mars.
