Fact Check: the earth is flat

Fact Check: the earth is flat

Published June 17, 2025
by TruthOrFake AI
VERDICT
False

# Fact Check: "The Earth is Flat" ## What We Know The claim that "the Earth is flat" contradicts centuries of scientific evidence and observation. Hi...

Fact Check: "The Earth is Flat"

What We Know

The claim that "the Earth is flat" contradicts centuries of scientific evidence and observation. Historical figures such as the ancient Greeks and Egyptians recognized the Earth's roundness through observations of celestial bodies and the behavior of shadows. For instance, they noted that during lunar eclipses, the Earth casts a round shadow on the Moon, which can only occur if the Earth is spherical (NASA, Ask An Earth and Space Scientist).

Modern science supports this understanding through various empirical observations. For example, ships disappear hull-first over the horizon, which would not happen if the Earth were flat (Ask An Earth and Space Scientist). Additionally, the Earth's rotation and its effects on time zones further affirm its spherical shape (Ask An Earth and Space Scientist, Wikipedia).

Analysis

The evidence supporting the Earth's roundness is extensive and comes from multiple scientific disciplines, including astronomy, physics, and geography. For instance, the phenomenon of different shadow lengths at various locations on Earth demonstrates that the surface is curved (Ask An Earth and Space Scientist).

Moreover, the concept of an ellipsoidal Earth, which is slightly flattened at the poles and bulging at the equator, is supported by satellite imagery and geodesic measurements (NOAA). The reliability of these sources is high, as they come from reputable scientific organizations and peer-reviewed studies.

In contrast, flat Earth claims often rely on anecdotal evidence and misunderstandings of basic physics and geometry. The scientific community overwhelmingly supports the conclusion that the Earth is not flat, and there is no credible scientific debate on this matter (BBC Sky at Night Magazine, UNLV).

Conclusion

Verdict: False
The claim that "the Earth is flat" is unequivocally false. It contradicts a vast body of scientific evidence and observation that confirms the Earth is a sphere. Historical and modern scientific observations, including the behavior of shadows, the visibility of distant objects, and satellite imagery, all support the conclusion that the Earth is round.

Sources

  1. How Do We Know the Earth Isn't Flat? We Asked a NASA Expert: Episode 53
  2. How Do We Know the Earth Is Round? - Ask An Earth and Space Scientist
  3. Round Earth Clues: How Science Proves that our Home is a Globe
  4. Empirical evidence for the spherical shape of Earth - Wikipedia
  5. Is the Earth round?
  6. 90 Years of Our Changing Views of Earth
  7. Is Earth round? Why is Earth round and not flat? - ABOUT SCIENCE
  8. 5 ways we can prove Earth is round, not flat - BBC Sky at Night Magazine

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Fact Check: the earth is flat | TruthOrFake Blog