US fracking companies are increasingly sending their idle equipment overseas, finding new markets abroad as growth slows in the shale fields of Texas, New Mexico and elsewhere.

In October 2008, Chris Bretherton lifted off from the coast of northern Chile in a C-130 turboprop plane. It was too dark to see the sandy hills of the Atacama Desert below, but the darkness suited ...

Maybe we don’t need the Turing test, because there’s a mighty obstacle that’s proving far more challenging to AI models’ supposedly burgeoning intelligence: running a vending machine without going ...