From gold to water, California’s wealth was built on extraction. The AI boom is reviving an old question: who pays the price?

Astronomers may have uncovered new details about one of the Milky Way's most important ancient collisions. Using data from ...

The roots of Russia's invasion of Ukraine go back decades and run deep. The current conflict is more than one country fighting to take over another; it is — in the words of one U.S. official — a shift ...