Evidence strength: The evidence overwhelmingly supports a roughly spherical Earth through observations, astronomy, physics, surveying, and reproducible statistical tests. Flat-Earth arguments persist among a small dissenting movement, but do not withstand the combined evidence.
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Image: space.com
Flight schedules and horizon behavior together falsify a flat-Earth model, critics of the flat-Earth view argue.
Summary
The mainstream scientific position is that Earth is approximately spherical, supported by converging evidence rather than one isolated demonstration. Observations of how distant objects disappear below the horizon, astronomical measurements, physical models, and a reproducible analysis of airline flight times all support curvature and reject a flat-Earth model.
- Distant objects disappear below the horizon in an order consistent with a curved surface, providing an accessible observation of Earth’s curvature.
- Scientific evidence from physics, astronomy, and everyday observations has repeatedly demonstrated that Earth is a sphere.
- A peer-reviewed statistical method using scheduled commercial flight times estimated nonzero curvature and formally rejected the flat-Earth hypothesis.
Source mix
3 of 8 institutional
- 3 Journals & institutions
- 1 News reporting
- 2 Reference & archives
- 2 Other / unclassified
Deeper Insight
Flat-Earth advocates commonly argue from direct-looking observations: water appears level, the horizon often looks flat, distant views seem too extensive, and institutional accounts are distrusted. Historical pamphlets and modern online communities preserve these arguments. Their position is best understood as a dissenting interpretation of observations, because the cited appearances do not supply a coherent model that explains the broader measurements as successfully as the spherical model.
- Flat-Earth proponents point to apparently level water, shoreline and horizon observations, and other everyday visual experiences as challenges to globe-based explanations.
- Some modern advocates argue that NASA, governments, universities, aviation, and surveying organizations participate in a deception about Earth’s shape.
- Flat-Earth discussions often rely on distrust of scientific and political institutions, with online communities differing in whether they promote a coherent alternative model or antagonistic speculation.
Sources · 9
- 3 Journals & institutions
- 1 News reporting
- 2 Reference & archives
- 2 Other / unclassified
What do these mean?
- Journals & institutions. Published in a peer-reviewed journal, or from a university, government body, court or other institution.
- News reporting. Journalism: newspapers, magazines and news sites.
- Reference & archives. Encyclopedias and web archives: a place to look something up or a stored copy, not an original source.
- Other / unclassified. A site we have not classified yet. This says nothing good or bad about it.
Featured · Primary source · guides.loc.gov
Journal Articles - The Flat Earth and its Advocates
Institution
Journal Articles - The Flat Earth and its Advocates: A List of References - Research Guides at Library of Congress Skip to Main Content The Library of Congress Catalog will be down for maintenance starting Wednesday, August 26th at 6pm EST. We anticipate that all operations will be restored by midni
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One hundred proofs that the earth is not a globe.
Institution
One hundred proofs that the earth is not a globe. | Library of Congress Top of page Skip to main content Library of Congress Search EverythingAudio RecordingsBooks/Printed MaterialFilms, VideosLegislationManuscripts/Mixed MaterialMapsNotated MusicNewspapersPeriodicalsPersonal NarrativesPhotos, Print
Read sourceAnalysis · anomalydesk.com
Flat Earth (modern revival) | AnomalyDesk Case File 115
Other
Flat Earth (modern revival) | AnomalyDesk Case File 115 # Flat Earth: The Modern Revival of a Pre-Eratosthenes Cosmology. Eratosthenes of Cyrene, working at the Library of Alexandria around 240 BCE, measured Earth's circumference within 1–15 percent of the modern value depending on what stadium leng
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