Project Starshot wants to reduce that to 20 years. [1] http://www.skyandtelescope.com/astronomy-news/100-million-for-probes-to-alpha-centauri-yes-really/ http:

Project Starshot wants to reduce that to 20 years. [1] http://www.skyandtelescope.com/astronomy-news/100-million-for-probes-to-alpha-centauri-yes-really/ http://www.skyandtelescope.com/astronomy-news/100-million-fo... [2] http://www.space.com/32546-interstellar-spaceflight-stephen-hawking-project-starshot.html http://www.space.com/32546-interstellar-spaceflight-stephen-...