The Nuclear Regulatory Commission plans to end longstanding guidance that radiation exposure be “as low as reasonably achievable.”

© Audra Melton for The New York Times

Tesla, Sunrun and Renew Home plan to tap solar panels, batteries, thermostats and other devices installed in millions of homes to meet the energy demands of artificial intelligence.

© Collin Chappelle for The New York Times

Tesla, Sunrun and Renew Home plan to tap solar panels, batteries, thermostats and other devices installed in millions of homes to meet the energy demands of artificial intelligence.

The federal government wants to help utilities buy large components for up to 10 large nuclear reactors. It’s unclear which, if any, companies might participate.

© Kendrick Brinson for The New York Times

The federal government wants to help utilities buy large components for up to 10 large nuclear reactors. It’s unclear which, if any, companies might participate.

The car’s driver-assistance system was in use when the crash killed a woman on Friday, the police said.

A pair of proposals from the Trump administration would lower costs and weaken requirements for fossil fuel companies that drill on federal property.

© Paul Ratje for The New York Times

The move targets two U.S. manufacturers at the center of the Trump administration’s effort to rebuild the domestic supply chain for critical magnets.

© Steve Marcus/Reuters

The employees encouraged limits on the complexes in a series of hearings in the tech giant’s hometown, Seattle.

Several countries have restricted the messaging app, a valuable platform for dissidents, criminals and extremists. Here’s an overview.

The Guardrails Alliance, which has raised $5 million, is positioning itself as a populist effort that will take on the pro-A.I. interests trying to influence this year’s elections.

Some shareholders might object, but there is little they could do, legal experts say.

The Silicon Valley company’s ambitions to roll out autonomous cars nationwide have hit political roadblocks in some of the country’s biggest markets.

As tech giants rush to build infrastructure, some residents who live near data centers say a constant low-frequency vibration is ruining their health and homes.

With support from Markwayne Mullin and Robert F. Kennedy Jr., the kratom industry is pursuing a potentially lucrative policy. Mr. Mullin owns equity in a company that could benefit.

The administration’s surprise restrictions Friday cut off foreign access to Anthropic’s latest models and sparked another round of finger pointing.

Britain said it would ban social media access for children under 16 starting in 2027, joining several other countries introducing similar measures.

OpenAI said that a coalition of states had opened an investigation over a wide range of its practices, including its handling of user data, safety of minors and advertising activities.

The company said on Friday night that the federal government had ordered limits on its Mythos and Fable 5 A.I. systems, citing national security concerns.

More than 100 planned wind farms in 21 states are now stalled indefinitely as the Pentagon delays military reviews once seen as routine.