Now that I've achieved a level of competence with my Prusa 3D printer, I'd like something to build. Any recommendations for open-source quadcopter type drones? Doesn't need to be crazy powerful, ...

KYIV, Ukraine — In the courtyard of a group of ordinary-looking Kyiv apartment blocks, a stairway leads down to a small basement apartment. Three big dogs run out into the hallway when newcomers ...

Biophysicist Oleh Halaidych, 34, helps make drones at a workshop in Kyiv. "I think we are all motivated because we see that this is a cheap and accessible way to make weapons," he says. "They kill the ...

The war in Ukraine is now largely being fought with drones. Ukraine made 2 million last year. Drone makers churn them out in factories and... Ukraine's DIY drone makers are helping fighters on the ...