US Business

SpaceX’s $300 billion swing in market value this past week put Musk back in grind mode, having to execute on highflying promises made in the lead-up to the biggest IPO ever.

People Inc. innovation chief Jonathan Roberts, a physicist who drew maps of Westeros for George R.R. Martin, has bold thoughts on the future of publishers.

Drivers got hooked on great lease deals. Now, they’re looking at hybrids and gas cars—or just paying higher prices.

After a flurry of deals, new apps, membership clubs and other middlemen are fighting over access to high-spending customers and the eateries they love.

Whatnot, a fast-growing live-shopping platform, has nearly doubled its valuation in less than a year.

The design would be a first for the automaker’s “pony car” and possibly broaden its consumer appeal.

Plus, a treatment for narcolepsy, a breakthrough in breeding new avocados and singles swap swiping for matchmaking bots.

Sodium-ion batteries have almost none of the problems that lithium-ion ones do, and could be cheap enough to make fossil-fuel dependence a thing of the past.