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'Starshot' plan gets probes to Alpha Centauri in your lifetime
The concept of exploring other star systems with probes (and not just telescopes) has proven elusive for one good reason: even the fastest spacecraft would take 30,000 years just to reach Alpha Centauri, our closest neighboring star. However, investor and space project enthusiast Yuri Milner thinks it's possible to do better. He and physicist Stephen Hawking have launched Breakthrough Starshot, a $100 million program that aims to get probes to Alpha Centauri within a generation. If all goes well, the observers would reach the relatively close-by system (4.4 light years away) within 20 years of leaving Earth.
