There was a time when Russia and the United States were in a highly competitive race to the moon. But the 1960s came and went, with America emerging as the pioneer of space travel. The U.S. is still ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Last-minute problems forced a launch delay ...

Engineers ran into problems repressurizing the Artemis II moon rocket's upper stage helium tanks overnight Friday, a problem that will require rolling the huge rocket off the launch pad and back to ...