Over security concerns. In hello and welcome to bbc news. A few minutes ago marked the exact moment Neil Armstrong set foot on the moon fifty years ago. The occasion was marked by washingtons air and space museum. The bbcs nada tawfik is at washingtons air and space museum. She saw it all happened. Remind us what happened. Just like 50 years ago the apollo 11 Mission United americans. Hundreds gathered here to mark that moment when Neil Armstrong made history, becoming the first man on the moon. They celebrated with a giant astronaut made of balloons that they lowered down from the ceiling and it was just impressive to see how many people had that same wonder and or on their faces, wanting to relive that moment and share it with other americans here, snapping the video on their phone. This has been the culmination of a week of events leading up to this moment where we see reunions from those who fly direct orders and Mission Control who help along with the two surviving astronauts who