Artemis II astronauts arrive at Florida launch site for first moon trip in 53 years

NASA is about to send humans on a flight around the moon

He suddenly couldn’t speak in space. NASA astronaut says his medical scare remains a mystery

Arctic sea ice hits lowest winter level as unprecedented heat hits smashes records all over Earth

Judge won’t block meeting that could exempt Gulf drilling from Endangered Species Act

AI is giving bad advice to flatter its users, says new study on dangers of overly agreeable chatbots