"Cobalt, a long-running nightlife hub for the gay community in Dupont Circle, has abruptly closed, owner Eric Little announced today. In posts to Facebook and Twitter, Little cited the recent sale of the building to developers, the rise of dating apps, and 'a slow decline in sales' as factors in the decision to shut down the multi-part business that housed a dance floor, the Level One restaurant, and the 30degrees lounge." - Gabe Hiatt