Contest invites teams to design a 'generation starship' for a 250-year journey

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Contest invites teams to design a 'generation starship' for a 250-year journey
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Jennifer Lawrence and Chris Pratt are trapped in a mediocre movie in the new space adventure Passengers.

A voyage in this kind of spacecraft — while still conceptual — would take multiple lifetimes, crossing unimaginable gulfs of interstellar space. The theoretical exercise puts aside technical problems, including the propulsion system, and focusses on the design of the habitat and society.In the 2016 movie Passengers, Jennifer Lawrence and Chris Pratt are on a 120-year journey to a colony beyond our solar system.

Our most distant object ever, Voyager 1, is currently in interstellar space more than 24 billion kilometres from Earth. That may sound far, but it's taken 47 years to reach that distance, and at that pace, it would like tens of thousands of years before the Voyager came close to another star in our galaxy.The contest puts aside many technical problems, including the propulsion system, power system and basic life support. Instead, it's focused on the design of the habitat and society.

We've had limited pictures of the kind of challenges a crew like that might face. In 1991, eight people entered Biosphere 2 in a two-year experiment to live in a large-scale closed environment designed to simulate a self-sustaining colony in space. This was not considered a failure, but rather a deeper understanding of how difficult it is to replicate the natural biosphere of the Earth. And that experiment was done with the benefit of bright Arizona sunshine, and all its plant-cultivating and energy-generating superpowers. In interstellar space, the sun is just another star in a permanently dark sky.

At a basic level, the ship itself would need to provide everything the inhabitants need: breathable air, water, food, places to live, as well as be large enough for people to spread out and get away from each other. That means they would need recreational spaces, green spaces, entertainment centres — the types of places people like to visit when they're not working.

One of the major elements of the contest is to plan how the space travellers' society would be organized, governed and policed. Teams are to consider what languages would be spoken, what cultures represented and what form the family structure would take.

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