A key issue noted for First appearance of Sphinx and First appearance of Megaman. Nova #6 was published by Marvel Comics on February 1, 1977, as part of a series that began in 1976. Marv Wolfman and Stan Lee write, and art comes from Dave Cockrum, Frank Giacoia and Irving Watanabe. This 36-page issue features Nova, Robbie Rider, Sphinx, Diamondhead and Condor, among 11 characters cataloged on VerseDB.