July 1, 2016 11:40 pm Air and Space Museum Celebrates Birthday With All-Nighter For the first time ever, the Smithsonian National Air and Space Museum is open all night long. News 4’s Darcy Spencer explains it’s part of a 40th birthday celebration. Local 3:01 “It's 100% different”: Community reflects on emergency curfew at National Harbor 2:25 Community, businesses mark first weekend of emergency curfew at National Harbor 1:27 Police search for suspect who vandalized Rockville synagogue sign 2:03 PNC Parkway Classic marks 40 years of racing in Virginia 5:01 Strawberry Season: Pick fruit at this Virginia festival