Squire, Tim (2019) Back to the Future: Radioprotective effects of astronaut hibernation and advanced propulsion systems during deep space travel. 1950’s Sci-fi or future reality. In: [Presented at the 70th Annual Scientific Meeting of the Royal Australian and New Zealand College of Radiologists]. R-0012. From: RANZCR 2019: 70th Annual Scientific Meeting of the Royal Australian and New Zealand College of Radiologists, 17-20 October 2019, Auckland, New Zealand.

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Abstract

Only 24 humans have ventured beyond Earth's protective magnetosphere, briefly during the Apollo missions to the Moon. Deep space radiation exposure has a high liklihood of significant biological consequence to astronauts when they explore deep space beyond the magnetosphere such as during a mission to Mars.

Human hibernation is not a new concept, with 1950s scientific literature and movies demonstrating its potential use for deep space travel. Synthetic hibernation known as “torpor” would improve the amount of supplies required and therefore lessen fuel required for missions to Mars and beyond.

Evidence suggests that animals when hibernating demonstrate relative radioprotection compared to their awake state. Hypothermia and sleep also appear to be radioprotective2,3. Circadian rhythm disrupted cells also appear to be more susceptible to radiation damage4. This is particularly important for astronauts who lack regular day/night lighting conditions and meal times. A synthetic torpor state for astronauts on deep space missions may provide a biological radioresistant state due to decreased metabolism and an enforced circadian rhythm when lighting schedules and feeding times are regulated.

Item ID:	84530
Item Type:	Conference Item (Poster)
Date Deposited:	29 Jan 2025 00:07
FoR Codes:	40 ENGINEERING > 4001 Aerospace engineering > 400107 Satellite, space vehicle and missile design and testing @ 100%
SEO Codes:	20 HEALTH > 2001 Clinical health > 200199 Clinical health not elsewhere classified @ 100%
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