Media Invited to Virtual Briefing as NASA’s Webb Prepares for Launch Media will have the opportunity to see the iconic golden mirror of NASA’s James Webb Space Telescope open for the last time on Earth during a virtual briefing Tuesday, May 11, at 1 p.m. EDT (10 a.m. PDT). Source: Nasa Solar System and Beyond News Media Invited to Virtual Briefing as NASA’s Webb Prepares for Launch