Helion’s nuclear fusion promises have garnered the attention of Silicon Valley—and raised concerns amongst scientists wary of its aggressive timeline.

Seattle-area company Helion Energy gets $425 million from investors including Sam Altman and Softbank to pursue clean energy's "Holy Grail."

A US start-up whose backers include tech billionaires Sam Altman and Peter Thiel has raised $425mn to keep it on track to achieve its target of producing electricity from nuclear fusion in 2028. Helion has the most ambitious timeline among start-ups racing to develop nuclear fusion,

The top tech companies Tuesday announced that they will create a new company, called Stargate, to grow artificial intelligence infrastructure in the United States. OpenAI CEO Sam Altman has shown support for Donald Trump,

OpenAI's CEO Sam Altman is planning to visit India next week, Reuters reported, citing people familiar with the matter. His potential visit, which could be his first in two years, comes at a time when the AI company is seeing legal hurdles brought on through copyright lawsuits.