The European Union could open up a "Pandora's box" if it restricts exports of Covid vaccines, said James Crabtree of the Lee Kuan Yew School of Public Policy.
"We have the danger — and I do mean danger — of having another surge within the next two months," Vanderbilt University's Dr. William Schaffner told CNBC.
Covid-19 cases are rising and hospitalizations have plateaued in the U.S. even as the country set a new record for coronavirus vaccine doses administered in one day on Saturday.
At least ten ships are changing course as the Ever Given, one of the world's largest containerships, remains stranded across the Suez Canal along Egypt.
NASA this past week unveiled the Commercial LEO Destinations (CLD) project, with plans to award up to $400 million in total to as many as four companies.
"It's not good public policy what the governors of Arizona, Florida and Texas are doing," Gupta said. "It just doesn't make sense from a scientific standpoint."
Satellite images captured on Friday give a unique vantage point of the stuck ship Ever Given, as crews work to move it after four days blocking the Suez Canal.