Visual trick fools AI into thinking a turtle is really a rifle

When is a turtle not a turtle? When it’s a rifle. It sounds like a bad riddle but this is … More

Bitcoin mining uses more energy than Ecuador – but there’s a fix

Bitcoin has an energy problem. The cryptocurrency and the blockchain it runs on, have long been heralded as shining examples … More

Would you ride in a car that was prepared to kill you? An “ethical knob” could let the owners of … More

ONE in three people reading these words will do so on a device powered by electrons. To make that possible, … More

Worlds with a permanent day and night side aren’t obvious places to look in the search for extraterrestrial life. Apart from … More

You can’t eat, you can’t sleep and all you can think about is your next fix. You may be addicted … More

Of all the stars in the sky, you might assume the closest to the sun would be the easiest to … More

Mars can blame Jupiter for its small stature. The Red Planet may be much smaller than we expect because Jupiter’s … More