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Will we move to a different solar system?

Will we move to a different solar system?
Jack Woods from Stockton on Tees (Aged 5-14)

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One Response

  1. There is no reason why we couldn’t move to another solar system at the moment except that it would be *very* expensive.

    The problem with moving between solar systems is that the gap between them is very large. The closest star is about 4 light years away (about 30 million million km) and the fastest we could go with current or near-future technology would probably mean it would take a couple of hundred years to get there. That means that the spaceship would have to be huge to contain enough supplies, plants, animals etc. People would be born and die on the spaceship without ever seeing their destination (a so-called ‘generation ship’).

    This would obviously be very difficult and expensive and there is no good reason to spend the money and effort on this right now. Maybe if we develop intelligent machines and automatic factories then we could build ships to do this, as the machines wouldn’t care how long it took them.

    Eventually we will have to move solar systems when the Sun dies in about 5 billion years. But this is so long in the future, we don’t have to panic right now…

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