People in western Canada faced a curious mystery this summer: An island that suddenly appeared in the middle of a large lake. Then, almost as suddenly, the island seemed to disappear. Now the island ...

As PCMag's resident data journalist, I practically live in Microsoft Excel. I've learned that it's capable of far more than I ever imagined. These are the tips and tricks you need to know.

A brackish lake in South Holland, cut off from the sea by a dam, flat as a table. Something is floating on it that does not look like a wind turbine at all. The rotor is tipped back at an angle, ...