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    Stephen Hawking Blesses Nano-Fleet of Interstellar Explorers

    Douglas Adams saw it first. Like the battle fleet attacking Earth in The Hitchhiker’s Guide to the Galaxy, the tiny spaceships envisioned by Russian billionaire Yuri Milner and Hawking could also be “swallowed by a small dog.” Known for bankrolling far-out tech, Milner’s investing $100 million in light-propelled nanocraft, which would travel at 20 percent of the speed of light and pass Pluto in three days, to explore neighboring star systems. But the gram-scale spacecraft will take time: Milner said the next generation might see them off.

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