Shares of Caterpillar, the maker of mining and construction machinery, are up more than 30% since year-end, making it the biggest contributor to the Dow Jones Industrial Average. WSJ’s Jonathan Weil ...

Researchers at Microsoft have created a data-storage system that can remain readable for at least 10,000 years — and probably much longer. In the digital age, the need for data storage is ballooning.

ALBUQUERQUE, N.M. (AP) — The federal agency that provides health care to Native Americans and Alaska Natives has announced it will phase out the use of dental fillings containing mercury. The Indian ...