He first appeared in Strange Adventures #1 (cover-dated August 1950), and was created by science fiction author Edmond Hamilton and artist Howard Sherman.

[3] He became an instant celebrity, but was kidnapped by aliens on his eighth birthday and not returned for nine years.

[4][5] After his return, his parents left Earth to find new worlds to colonize on the exploratory spaceship 'The Starfarer', and were not seen again.

[7] Whatever the correct version, accompanied by Halk, a Martian scientist (once Chief Scientist of Mars), Jero, a Venusian,[1] and a pet chameleon dog, Loopy, whose color changes according to his mood, he discovered many alien worlds (and a sub-atomic universe[8]) in his spaceship 'The Pioneer'.

[3] Chris eventually found 'The Starfarer' and his parents' graves on the planet where they had died saving the rest of the crew in a crash.