Svmuu reported that Helion, a nuclear fusion energy startup backed by OpenAI founder Sam Altman, has announced the completion of a $465 million funding round, led by Thrive Capital. The post-investment valuation has reached $15.5 billion, nearly three times its previous valuation of $543 million. It is reported that the company is dedicated to developing nuclear fusion technology to power data centers and other customers. However, it has yet to prove the feasibility of its technology in actual electricity production. Investors remain highly confident in its potential, and this round of funding will be used to accelerate technology development and commercial advancement. (The Information)