RT @3tags_org: In Search For The Perfect Light Sail To Propel Spacecrafts To The Alpha Centauri System http://ift.tt/2exHFdA https://t.co/J22D5OHvSD

In Search For The Perfect Light Sail To Propel Spacecrafts To The Alpha Centauri System https://t.co/s2UVpxXSfE #space #science http://pic.twitter.com/hblCw6vZKE

— 3tags (@3tags_org) October 14, 2016

from Twitter https://twitter.com/iPhoneMaster13

October 13, 2016 at 11:44PM
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