In "Stak Trek," Federation starships relied upon tractor beams to hold and tow other vessels. Scientists may not be there yet, but they have managed to tow a small particle using light beamsFrom FOX News:
WASHINGTON – Tractor beams, energy rays that can move objects, are a science fiction mainstay. But now they are becoming a reality -- at least for moving very tiny objects.
Researchers from the Australian National University have announced that they have built a device that can move small particles a meter and a half using only the power of light.
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