Several severe allergic reactions that were reported among hundreds of thousands of people vaccinated with the Pfizer-BioNTech coronavirus vaccine last week.
Several severe allergic reactions that were reported among hundreds of thousands of people vaccinated with the Pfizer-BioNTech coronavirus vaccine last week.
Will the U.S. megadrought ever end? 
This ‘anti-vampiric’ grave used two strategies to stop the undead 
What’s behind ‘one of paleontology’s most enduring enigmas’? 
Math puzzle: Shape-birding 
Big space mirrors could bring Earth on-demand light — and upend our night sky 
Nepal’s deadly debris flow points to risks in other high mountain regions 
Yemen’s humanitarian crisis growing by the hour amid spike in displacement 
Nepal floods: ‘Apocalyptic’ destruction signals wider climate threat across Himalayas 
Haiti: Child malnutrition crisis worsens amid escalating violence 
The Connection Between Urbanization and Poverty: How Cities Can Reduce Poverty – Or Deepen It