Denmark tests unmanned robotic sailboat fleet – vessels will patrol Danish and NATO waters in the Baltic and North Seas, where maritime tensions and suspected sabotage have escalated ~transport Article 654 words 9 votes
An engineer says he’s found a way to overcome Earth’s gravity ~space spaceflight rocketry Link 21 votes
Sky skimmers: The race to fly satellites in the lowest orbits yet ~space satellites Article 2056 words 6 votes
NASA's 3D-printed detonation engine revs up for four minutes in breakthrough test ~space rocketry Article 348 words 33 votes
A cargo ship equipped with rigid sails, each the height of a ten-story building, has departed on its inaugural journey ~transport Article 449 words 62 votes
Hurtigruten Norway's new cruise ship design includes batteries and retractable sails equipped with solar panels ~transport Article 8 votes
Toroidal propellers: A noise-killing game changer in air and water ~transport Article 1442 words 8 votes
Why wind power ships may be the future of transportation ~transport Video 13:04, published Nov 23 2021 5 votes
Everyone will say this craft breaks the laws of physics - Risking my life to settle a physics debate ~science physics Video 21:38 21 votes
Inside Starshot, the audacious plan to shoot tiny ships to Alpha Centauri ~space astronomy spaceflight rocketry Article 2011 words, published Jun 26 2019 10 votes
Spinning sail technology is poised to bring back wind-powered ships ~transport Article 709 words, published Mar 21 2017 6 votes