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Piers Sellers

Can humanity get to the stars?

In the next 100 years, we will have explored right to the limits of our solar system with people and thoroughly explored every nook and cranny with robots. I don't know when humans will start spreading out towards the stars after that; when someone can put a starship drive together - robots first and then people. We know there are planets out there and we know some of them live in the habitable zone.

Robots will go out first to other stars and you will be able to see them in your living room. Humans will follow, though I don't know yet how they will keep people alive or frozen or whatever for the times and distances required.

Even if humans creep around at 1% of the speed of light (and I'm sure we could do better than that over time), we will have spread out over the galaxy in 10m years. It's not hard to do. With 10% of the speed of light, we will have gone around the whole galaxy in 1m years. There will be people everywhere.

Every advance in science has changed the human perspective, the way we see ourselves. The idea that the Earth isn't the centre of the universe and the theory of evolution both changed things. I'm pretty sure there is life out there somewhere and bumping into other lifeforms, intelligent or not, will be interesting.

The descendants of the human race, whatever they are, will have to move away from this rock and this solar system to survive - stars have finite lifetimes. But that's a long way off: I wouldn't worry about selling your stocks and shares just yet.

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12y ago
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11y ago

span the different fields of science

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