Images: NASA feels the heat at research facility Summary: Interaction Heating Facility arc jet heater core is one of the principal research areas where materials for space exploration are tested. By Bill Detwiler | July 19, 2006 -- 11:46 GMT (04:46 PDT) Follow @billdetwiler Previous | Next Image 4 of 7 Inside the arc jet facility Inside the arc jet facility. Topic: Nasa / Space Kick off your day with ZDNet's daily email newsletter. It's the freshest tech news and opinion, served hot. Get it.