As is standard procedure for major NASA missions, the US space agency held a post-launch news conference on Sunday morning at Kennedy Space Center in Florida to provide information about how the Nancy Grace Roman Space Telescope was faring during its initial maneuvers.

What was not standard, however, is what happened in the middle of the news conference. A little less than half an hour in, NASA Administrator Jared Isaacman looked down at his mobile phone, and then stood up and walked away from the dais where he had been seated behind a table along with other NASA officials. He briefly left the room.