[2] In Pep #1, in a story drawn by Jack Cole, young scientist John Dickering has discovered a gas fifty times lighter than hydrogen.

He makes a glass shield (visor) as that is the only thing his beams will not disintegrate, a weakness often used against him from the first story onwards.

According to Jess Nevins' Encyclopedia of Golden Age Superheroes, "He fights ordinary criminals and Nazis, is hypnotized into committing crimes and has to evade the police, fights Stinger Lee and his blackout machine, the Master and his death ray, and the evil surgeon the Eye Thief.

"[7] In issue #17, the Comet was followed to his apartment and killed by gangsters as revenge for putting their boss "Big Boy" Malone in prison.

His origin was repeated and expanded in The Mighty Crusaders #2 (1966), as well as in the later Red Circle Comics-published truncated mini-series The Comet (October–December, 1983).

Following the conclusion of both series, a six issue mini-series titled Crucible followed, featuring a redesigned Comet living in the ruins of his home city which he had destroyed.

A new version of the Comet is set to appear in the Inferno back-up story in the Shield #5, sporting a new design courtesy of artist Duncan Rouleau.