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150-Year Journey to Alpha Centauri Proposed

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Giant light sail interstellar probe

This artist's concept illustrates an interstellar probe, a giant light sail, approaching the potentially habitable planet Proxima b in our nearest neighboring star system Alpha Centauri. A new study suggests that such a sail could launch from Earth to rea

Credit:PHL/UPR Arecibo/Abel Mendez

Interstellar travel, a timeworn staple of science fiction, can already be science fact if one has cash to spare.

From Scientific American
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