NASA Begins Work to Build a Quieter Supersonic Passenger Jet via NASA https://t.co/q1MMA5EYq1

NASA Begins Work to Build a Quieter Supersonic Passenger Jet via NASA https://t.co/q1MMA5EYq1

— John Prieto (@prietoj) February 29, 2016

from Twitter https://twitter.com/prietoj

February 29, 2016 at 01:07PM
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