UFO UAP Wiki — a reference wiki, not a verdict. Read with skepticism. October 3, 2026

Carl Sagan

Astronomer and science communicator whose skeptical approach to UFO claims remains highly influential
Carl Sagan
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Born1934
Died1996
NationalityUnited States
CategoryScientist
Known for
RolesAstronomer, Cornell University; co-founder, The Planetary Society
StatusMainstream scientific consensus

Carl Sagan was a world-renowned American astronomer and science communicator who, despite his own openness to the scientific possibility of extraterrestrial life via SETI, was consistently and rigorously skeptical of UFO reports as evidence of alien visitation, arguing that extraordinary claims required extraordinary evidence that such reports had never met.

Assessment

Sagan participated in the 1969 American Association for the Advancement of Science UFO symposium alongside James McDonald and J. Allen Hynek, and his general epistemological standard remains one of the most frequently cited frameworks by modern skeptics such as Michael Shermer.

[1]

See also

References

  1. ^ Sagan, C. (1995). The Demon-Haunted World: Science as a Candle in the Dark.
Categories: United States Scientist Skeptic