NASA researchers are working on a laser propulsion system that could get to Mars in 3 days https://t.co/SqOUTD29G6 https://t.co/69xfhyYmxZ

NASA researchers are working on a laser propulsion system that could get to Mars in 3 days https://t.co/SqOUTD29G6 https://t.co/69xfhyYmxZ

— iPhoneMaster13 (@iPhoneMaster13) February 23, 2016

from Twitter https://twitter.com/iPhoneMaster13

February 23, 2016 at 12:37PM
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