Catnap loves his kittens more than anything in the world, even more than his Smiling Critter family. When they are taken in the middle of the night, he stops at nothing to track down the culprit.

Physicists may soon witness a cosmic fireworks show: the explosive death of a primordial black hole. Once thought to be unimaginably rare, new research suggests there’s up to a 90% chance of catching ...