When the government’s $7,500 EV lease credit expires September 30, Lucid Motors will keep the savings alive by paying it out of its own pocket. Lucid Motors knows timing doesn’t always work out the ...

For decades, physicists have faced one of science’s greatest puzzles: merging quantum mechanics, which describes tiny particles, with general relativity, which explains the universe’s vast structures.

For decades, physicists have struggled to reconcile the laws governing the very small with those that describe the vast cosmos. Quantum mechanics rules subatomic particles, while general relativity ...