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.

The Pima County Sheriff's Department and the FBI have fielded around 40,000 to 50,000 leads so far. Coverage on this live blog has ended. Follow live updates here. Ring camera founder speaks about ...

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