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A new website called Moltbook has become the talk of Silicon Valley and a Rorschach test for belief in the state of artificial intelligence.

Energy experts said that governors and legislatures have tools to keep electricity prices from rising further, and might even be able to lower them.

The New Shepard rocket from Blue Origin, which brought 92 people on trips to the edge of space, will cease flying for at least two years as the company prioritizes NASA contracts.

The company's chief executive, Elon Musk, said this week that it would stop making the car, an electric pioneer in 2012, as well as the Model X.

In Minneapolis, it has become a battle of phone versus phone.

Agents use facial recognition, social media monitoring and other tech tools not only to identify undocumented immigrants but also to track protesters, current and former officials said.

New phone designs, coupled with robust holiday spending, continued to lift iPhone sales in the quarter and drove the company to record profits.

OpenAI's discussions with Microsoft, Nvidia, Middle Eastern sovereign wealth funds and others could value it at $750 billion or more.

A.I. companies are buying up memory chips, causing the prices of those components -- which are also used in laptops and smartphones -- to soar.

The rivals made billions of dollars in the business over the past year, showing other companies that Nvidia isn't the only game in town.