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Jo Waller's avatar

Bravo. Scott Ridley's new Alien saga incarnation Prometheus with Michael Fassbender as a robot looking to understand the origins and meaning of humanity, that though created by them, he has transcended and progressed from also illustrates the 'natural' urge both to leave earth and to make robots that look just like us!

Astronauts suffer greatly from lack of gravity but also from lack of fibre. Humans need to eat loads of it, particulary fresh leafy greens and fruit, every day. They also need to be exposed to bacteria in the air and soil- bit of a problemo in sterile space. A space ship would have to have loads of crops growing, it's going to be heavy. Great use of fossil fuels.

Factory farming is my great objection to progress. The thought of taking fellow earthlings with slightly different genes, to breed and eat into space or onto other planets fills me with bile.

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Rebecca 's avatar

A city on mars (Weinersmith) is an excellent review of why going to mars is a terrible idea. Issues that have not had much attention elsewhere are labour mobility, children and war. On mars, as a worker, your ability to leave and get another job would be minimal or zero, opening the door to all sorts of abuse. There has been no substantial research into how pregnancy, birth and child development (eg bone growth)would happen in low gravity, high radiation environments. Bringing children into this environment, without knowing how it will affect them, could be considered a form of child abuse. Massive projectiles launched from orbit create huge explosions, and there would be less of a barrier to releasing lethal bio-weapons as mars and earth do not share a biosphere. For this and many other reasons they conclude going to mars is a bad idea.

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