Can starships survive the journey?

[![A starship hitting a dust mote-sized particle would impart the same kinetic energy as slamming head on into a speeding freight train. All it would take is one direct hit to knock out the entire vehicle and demolish a trillion-dollar mission.][1]][2]The search for life on planets orbiting other stars will dominate astronomy for the remainder of this century. By the beginning of the next century scientists will be planning on how to travel to other worlds to see alien life forms up close.

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