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What is the Big Void above the Grand Gallery?

Asked 26 Oct 2026 by ·4 answers·0·0 following
Four answers, none aheadNone is ahead yet. See what would settle it.

Where it stands

Four answers have been proposed. None is ahead on the evidence yet. Four are still possible.

Why it matters

It is the largest unknown space found inside the pyramid since the 19th century and its reading bears on the construction method and on whether sealed rooms remain⁠[1].

Answers 4

Evidence: 1 for
Still possible
A deliberate sealed chamber or second gallery.
Not tested enough to call either way
Evidence: 1 for, 1 against
Still possible
None of these.
Not tested enough to call either way
Evidence: none yet
Still possible
Part of an internal construction ramp.
Failed a test; not refuted outright
Evidence: 1 against
Disputed

History

  1. Morishima et al. puts forward: a deliberate sealed chamber or second gallery.
  2. Morishima et al. puts forward: part of an internal construction ramp.
  3. Morishima et al.: the void's cross-section resembles the Grand Gallery's and it is at least 30 m long.For: A deliberate sealed chamber or second gallery.
  4. Morishima et al.: the void lies above the Grand Gallery, deep inside the pyramid, not near the faces.Against: Part of an internal construction ramp.
  5. Procureur et al. puts forward: a construction feature, such as a relieving space or a gallery left from building, with no contents.
  6. Procureur et al.: the North Face Corridor, the other ScanPyramids find, proved on viewing to be a rough, empty space behind the…For: A construction feature, such as a relieving space or a gallery left from building, with no contents.
  7. Bundesanstalt für Materialforschung und -prüfung (BAM): no published imaging resolves its walls or ends.Against: A deliberate sealed chamber or second gallery.
  8. Asked on this site
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