1,000-Year-Old Viking Hall Unearthed in Denmark

COVID-19 Vaccine Acceptance Increased Globally Last Year, but Decreased in 8 Countries

Men predicted to outnumber women in physics until the year 2158

Last year marked the end of an era in spaceflight—here’s what we’re watching next: Will Artemis happen? Can Starship actually work? Will humans destroy low-Earth orbit?