Companies, nonprofits and government agencies in Washington state are reeling from President Trump's order freezing ...

Plus: A constellation of data-gathering balloons, an asteroid may strike the Earth next decade and how to perfectly boil an ...

Helion, an Everett-based fusion energy company, has announced a $425 million Series F investment round that will be used to ...

The OpenAI leader and SoftBank, who are leading the mammoth Stargate effort, have poured hundreds of millions into Helion.

Helion Energy says its series F raise will fund it through the deployment of the first-ever commercial nuclear fusion plant.

A sign of how serious Beijing is taking this new energy arms race emerged last week when the Chinese Academy of Sciences ...

Tapping into the Sun's Power Fusion energy has long been considered the holy grail of clean energy solutions. The reason it matters is simple: it mimics the process that powers the sun, offering an ...

OpenAI CEO Sam Altman is a billionaire, thanks to his investments in technology companies like Reddit, Stripe, Airbnb, and more. Here's how Altman made his money.

It could be one of the biggest private computing infrastructure projects in history — or a disaster.

In announcing a $35 billion program to bring inexpensive solar power to some 300 million Africans, officials left out two words: climate change.

While the year started out hot for large megaround deals, it has slowed considerably. Just three startups raised nine-figure rounds this week and you barely needed a round of $60 million to make this ...