Peter Kolosimo, pseudonym of Pier Domenico Colosimo (Modena,15 December 1922 – Milan, 23 March 1984), was an Italian journalist and writer.

[5] In a review of Kolosimo's Not of This World, Jason Colavito has alleged that the book fabricates evidence, mistranslates sources and conflates science fiction and fact.

[6] Wu Ming, an Italy-based collective of writers, considered Kolosimo a "fellow novelist" and wrote about him on several occasions, including a story published in GQ (Italian edition), where they stated, "we like to think he just left the planet, and is still travelling across the universe.

[8] Pagine 70, another Italian magazine, described Non è terrestre as his "first official revenge on the academic world" that tended to reject his ideas.

He describes Kolosimo’s work as undeterred against the repeated "snobbery of the academic world" and argues that it demonstrates that "imagination is a social weapon, which can break down regimes, give birth to states, and think … even manage to land on the moon.