Pope Francis urged Chinese Catholics to be good citizens and good Christians, a rare instance of the Holy Father publicly addressing the issue of religion in […]

Sign up for CNNs Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Four astronauts have returned home from […]

Scientists around the world are fast-tracking lab experiments to try to understand the highly mutated BA.2.86 variant of the virus that causes Covid-19. Results just beginning […]

Comment on this story Comment Did you make it through the first day of our heat wave okay? Near-record heat continues as temperatures approach 100 degrees, […]