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Yes solar is not new. More efficient now, but not new.

An Ion drive, with breeder reactor power, and a scoop for fuel collection would make a good star ship.

:)>

ok..I suppose you're going to start building a star ship next.

I sure would like to! We could do it with what we have now. THAT would be Fun!

:)>

we could do it now? then someone somewhere is working on one right?

There are designs floating. There is one that is a sailboat that uses light striking a mylar sail, for thrust. The most practical is the Ion drive using collected gasses for fuel. Very efficient, with a constant low level thrust, it would fly at a significant portion of the speed of light.

Quantum entanglement, might allow us to refuel it from here too.

The biggest restriction is money, not technology.

:)>

sir smithlabs! How fast is a significant portion of the speed of light? what about g forces and all that?

An Ion engine, burning free fuel, can accelerate at a tenth gravity or so. Boosting for a long period you could reach seven or eight tenths of C.

Some of the closer stars could be reached in less than a century this way. THAT would be an amazing trip!

:)>

sir smithlabs! seven or eight tenths of C. what's the C?
less than a century, most people would die before they got there or be too old to do anything.