Silicon Valley Exec Sam Altman Puts $375 Million, His Biggest Investment Ever, Into Fusion Start-Up Helion Energy - NewsBreak

The fusion start-up Helion Energy announced a $500 million funding round on Friday. The round was lead by Silicon Valley investor Sam Altman, who put $375 million into Helion, his largest investment in a start-up ever. Helion Energy plans to use the $500 million to complete the construction of...