On the face of it, NASA's newest probe sounds incredible. Known as Dragonfly, it is a dual-rotor quadcopter (technically an octocopter, even more technically an X8 octocopter); it's roughly the size of
Metamaterials can make the J-20 an extra stealthy electromagnetic force. China's new fighter, the J-20, uses a combination of stealth and datalinks to compete with the best fighters on the planet. Now,
Vladimir Putin recently unveiled hypersonic Kinzhal missile as part of an array of weaponry Russia has said it successfully launched a hypersonic missile described by Vladimir Putin as an ideal weapon
• A B-52 Stratofortress got hit with lightning, tearing a hole in its tail.• The tail was damaged beyond repair and had to be replaced.• This kind of fix is a large-scale, and uncommon, repair. On Dec.
(CNN) — It's the middle of the night in the sleepy French town of Lévignac, in the countryside just outside of Toulouse. There are people lined up along the town's main road, waiting for a parade to begin.