Governments are blocking the internet, banning social media posts and cutting access to commercial satellite images. But experts say that efforts to censor information have had mixed results.

Since Trump began his second term, his administration's use of the armed forces has left a growing number in the military unsettled, according to NPR interviews with service members and advocates.

After swooping around the moon, viewing an eclipse, breaking an Apollo distance record and testing out a space toilet, NASA's Artemis II mission is about to return to Earth. Here's what the astronauts ...