Death in Space: How Crews Would Handle Remains on Orbit, Moon, and Mars
A space-medicine expert explains that handling a crew member’s death varies by mission: on the ISS remains could be returned to Earth within hours, on the Moon within a few days, and on a Mars mission likely only at the end of the mission with the body preserved aboard in a dedicated chamber. Death in vacuum outside a suit is instantaneous, and cremation or burial on other worlds presents energy and contamination challenges, so preservation and eventual return are prioritized. The piece also notes the need for grieving support for families and thorough planning for future space colonization.