Britain's Rolls-Royce (RR.L) said it has successfully run an aircraft engine on hydrogen, a world aviation first that marks a major step towards proving the gas could be key to decarbonising air travel.
Vice President Kamala Harris spoke briefly with Chinese leader Xi Jinping on Saturday in another step toward keeping lines of communication open between the two biggest economies.
Recently, the news about Boston University creating a new type of virus became a red-hot topic. It is said that the virus has a lethality rate of 80 percent. Is it true?
Minority Leader Kevin McCarthy said House Republicans will set up a committee to investigate how COVID-19 spread from China, military and economic threats from the eastern nation, and intellectual property theft.
