<ul><li>Radiation oncologist James Welsh discusses the biological effects of space radiation on astronauts and how it impacts human health.</li><li>Physicists Biju Patla and Neil Ashby propose using atomic clocks to create a universal time standard for the Moon, which could also operate as a GPS-like system for navigation.</li><li>The human body appears to be more resilient to radiation than spacecraft microelectronics, potentially making damage to computers a limiting factor for space exploration.</li><li>Implementing a lunar time system could serve as a prototype for a more ambitious system on Mars.</li></ul>

Space travel: the health effects of space radiation and building a lunar GPS

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