Warm weather may be winding down but Arlington’s innovation economy is heating up.

Tandem NSI, which connects technology entrepreneurs and national security agencies, is hosting an outdoor “Throwback Thursday” event on Oct. 2, promising that “summer’s not over until we say it is.”

Classic rock band Two Car Living Room will perform at the free event, which is being held at Artisphere from 6:00 to 9:00 p.m. Also on offer: beers and the exhibit Think With Your Hands, a collaboration between artists and software developers.

Register for the event here.