With their capability to fly higher, farther, and more efficiently, jet engines have transformed air travel since their introduction. From its origins in the 1930s, the jet engine was a substantial ...

Next time you glance out the window mid-flight, look closer at those tiny fins on the engine. They're small, subtle, and surprisingly important.

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 ...

Jet engines seem built to last forever, but their real lifespan depends on a lot more than just age, including how they're ...