Other Unclassified Complete

40027753-001-0030

National Archives and Records Administration

Released

—

Published

—

Added to archive

Jun 16, 2026

Department

National Archives and Records Administration

Original size

14.2 MB

External ID

2c2911c0a37dc6cd83525094a489c104eef114bf49ae3f410a7b2b8a4a9024b9

Confidence

85%

Credibility

90%

View original document ↗ hosted at the official government source

Intelligence summary

This document is a reprint of an article by Carl Sagan discussing unidentified flying objects (UFOs) published in the Encyclopedia Americana. It is sourced from the National Archives and highlights Sagan's contributions to the understanding of UFO phenomena.

Tags & topics

Locations referenced

Location	Context	Confidence	Supporting text
Observatory, Massachusetts	Unknown Context	Unresolved	IAL ARCHIVES D FROM HOLDINGS OF THE NATIONAL REPRODUCED FR UNIDEN TIFIED FLYING OBJECTS by Carl Sagan Department of Astronomy, and Smithsonian Astr Cambridge, H
Grolier Incorporated, New York	Unknown Context	Unresolved	…OBJECTS by Carl Sagan Department of Astronomy, and Smithsonian Astr Cambridge, Harvard Univ Ophysica] Observatory, Massachusetts yclopedia Americana te Circula

Extracted timeline

Jun 16, 2026

Ingestion Date

Ingestion Date for 40027753-001-0030

Jun 16, 2026

Document Record Date

Document Record Date for 40027753-001-0030

Jun 16, 2026

Update Date

Update Date for 40027753-001-0030

Entities mentioned

Carl Sagan Harvard University Encyclopedia Americana

Full document text

375 characters, transcribed via OCR. Errors reflect the source scan. Compare with the original ↗

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IAL ARCHIVES D FROM HOLDINGS OF THE NATIONAL REPRODUCED FR UNIDEN TIFIED FLYING OBJECTS by Carl Sagan Department of Astronomy, and Smithsonian Astr Cambridge, Harvard Univ Ophysica] Observatory, Massachusetts yclopedia Americana te Circulation Reprinted from the Enc of the publishers, v Yclopedia Americana by Permission Grolier Incorporated, New York. 15 ersity;