Space junk is everything from spent rocket upper-stages that measure metres across, to lost bags of tools let go by careless astronauts, to shattered Chinese satellites to flecks of paint moving at 25 times the speed of sound. Under the wrong circumstances any piece of junk could kill a perfectly…
Robot aircraft – UAVs – are going to be big news in the future of warfighting, as the reveal of the UK’s new one proves. But have you thought about tiny UAVs for spying? Check out this robot insect to see the future of surveillance.