[KevinDavis]

[tet68]

As always, the problem is how do you stop?

[RightWhale]

Heard Mrs Carl Sagan yesterday going on about this. They are getting a big solar sail ready for launch, which if it deploys properly ought to be highly visible. This is a fine idea for getting to the outer planets, or at least sailing right past the outer planets at high speed. The scheme might do for getting to the next star and even stopping when they get there.