The U.S. has plans for a manned visit to Mars by the mid-2030s. The ESA and Russia have sketched out a similar joint mission, and it is claimed that China's space program has the same objective. Apart from their destination, all these plans share something in common: extraordinary danger for the explorers. What happens if someone dies out there, months away from Earth?
Swedish ecologists Susanne Wiigh-Mäsak and Peter Mäsak are the inventors of an environmentally friendly alternative to cremation and burial, called Promession. The technique entails freezing a body, vibrating it into tiny pieces, and then freeze-drying the pieces, which can then be used as compost to grow a memorial shrub or tree.
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