Solar cells based on perovskites, materials with a characteristic crystal structure first unveiled in the mineral calcium ...

Nvidia Corp.’s shares tumbled in after-hours trading Tuesday, after the chip giant disclosed in a regulatory filing that it expects to write down charges of up to $5.5 billion in its fiscal ...

Nvidia NVDA said late Tuesday in a Securities and Exchange Commission filing that the U.S. government is now requiring an export license for it to sell its H20 chips to China, and that rule will ...