Armstrong visited the Seattle World's Fair in May 1962, and attended a conference there on space exploration that was co-sponsored by NASA. After he returned from Seattle on June 4, he applied to become an astronaut.
On June 4, 2013, DC unveiled two new digital comic innovations to enhance interactivity: DC2 and DC2 Multiverse. DC2 layers dynamic artwork onto digital comic panels, adding a new level of dimension to digital storytelling, while DC2 Multiverse allows readers to determine a specific story outcome by selecting individual characters, storylines and plot developments while reading the comic, meaning one digital comic has multiple outcomes. DC2 will first appear in the upcoming digital-first title, Batman '66, based on the 1960s television series and DC2 Multiverse will first appear in Batman: Arkham Origins, a digital-first title based on the video game of the same name.