Warning: This article contains Thunderbolts* spoilers.] “I mean, the place wasn’t cheap,” Valentina Allegra de Fontaine (Julia Louis-Dreyfus) says of the Watchtower in Thunderbolts*. “But it has good ...

as well as being a nod to Howard Stark’s Arc reactor in the fictional Iron Man universe. An exploded diagram of an ARC reactor, showing the ease of accessing the vacuum vessel. No divertors are ...