Q&A with Steve Skladanek, president of Lockheed Martin Commercial Launch Services

United Launch Alliance’s first full-scale Vulcan booster with two Blue Origin BE-4 engines arrived at Cape Canaveral Space Force Station on Saturday, the first time in more than a decade that a core stage from a new family of orbital-class rockets has rolled into the Florida launch facility.

United Launch Alliance is giving members of the public a behind-the-scenes look during one of its Atlas 5 rocket flights from Cape Canaveral.

The United Launch Alliance Delta 4 Medium+ (4,2) rocket lifted off at 12:52 a.m. EDT (0452 GMT) from Cape Canaveral for the Geosynchronous Space Situational Awareness Program.