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Official reports, hearing transcripts, case files and releases: the paper behind the cases. 2,872 documents, 2,610 mirrored with their text, 53,529 pages indexed, so a search reads inside them and lands on the page.

New in the library The PURSUE files The Department of War's UAP release, mirrored in full: the videos, recordings and images, each beside its case file.

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“green fireballs”

Documents 79 Scans in the stories 5

Documents matching “green fireballs”79 records · page 1

65 HS1-834228961 62-HQ-83894 Section 006 Official release

Federal Bureau of Investigation· 271 pages · PURSUE release (war.gov) · 2 stories
- p. 27 …Possible exceptions to the noiselessness of green fireballs are the incidents of 1949, January 30, and 1949, December 4.) (5…
- p. 28 …On the contrary in the case of the green fireballs, plots of admissible approach sectors show that there is a…
- p. 29 …An analysis just completed of the time distribution of the green fireballs so far observed permits us to add an…
- 10 more pages mention it
UAP Reported at Sandia Base, 1948-1950 Report

U.S. Department of War· 1948· 116 pages · PURSUE release (war.gov) · 1 story
- p. 64 …On the contrary in the case of the green fireballs, plots of admissible approach sectors show that there is a…
- p. 65 …An analysis just completed of the time distribution of the green fireballs so far observed permits us to add an…
- p. 76 …In the case of the December fireballs most of the observers have reported that the green balls appeared almost instantly…
- 20 more pages mention it
PRC: Scientists Identify Xinjiang UFO as Plasma Fireball FOIA release

Central Intelligence Agency· 1988-03-03· 2 pages · CIA reading room · 0 stories
- p. 2 …DISCHARGE PLASMA APPEARING IN THE FORM OF A FIREBALL. THE GREEN RING OF LIGHT WAS PROBABLY THE RESULT OF ELECTRIC…
DOE-UAP-D004 PDF mirror Document

Newsweek· 2026-07-10· 25 pages · Cited by the stories · 1 story
- p. 8 …In the ce,se of the tuo green fireball paths, determined from Los Ala::no:s obse:r-·tations, in…
- p. 16 …In the ca.Be of the green fireballs, to my knouledge, no such train haa been observed.. Tha:;:; question is…
- p. 22 …green fireballs, but the7 might have seen them. Dr. LaPaz: My one attempt to contact . •... arid. unfortunately I did not…
- 13 more pages mention it
Los Alamos Conference on Aerial Phenomena, 1949 (DOE-UAP-D004) Document

Department of War, PURSUE Release 04· 2026-07-10· 25 pages · Cited by the stories · 1 story
- p. 8 …In the ce,se of the tuo green fireball paths, determined from Los Ala::no:s obse:r-·tations, in…
- p. 16 …In the ca.Be of the green fireballs, to my knouledge, no such train haa been observed.. Tha:;:; question is…
- p. 22 …green fireballs, but the7 might have seen them. Dr. LaPaz: My one attempt to contact . •... arid. unfortunately I did not…
- 13 more pages mention it
Prc:scientists Identify Xinjlang UFO as Plasma Fireball FOIA release

Central Intelligence Agency· 1988-04-20· 2 pages · CIA reading room · 0 stories
- p. 2 …DISCHARGE PLASMA APPEARING IN THE FORM OF A FIREBALL. THE GREEN RING OF LIGHT WAS PROBABLY THE RESULT OF ELECTRIC…
Project Twinkle Final Report (scan) Report

NICAP· 29 pages · Cited by the stories · 1 story
- p. 20 …Foremost in this category have been those which are described as "green fireballs". 2. Analysis by various specialists has indicated…
- p. 21 …Cambridge Research Laboratories lettors, dated 7 November 1949, subject: "Report of Conference on 'Green Fireballs" (Project Grudge)." (See Inclosure No…
- p. 22 …Report of Conference on "Green Fireballs" (Project Grudge) ## TO: Commanding General Air Materiel Command Wright-Patterson AFB Dayton, Ohio ATTN…
- 5 more pages mention it
Declassified Canadian UFO Documents, search for Michalak FOIA release

Internet Archive· 300 pages · Cited by the stories · 1 story
- p. 23 …SLANSON UNIVERSITY OF BRITISH COLUMBIA UNCLAS ATO28 28 JUL FIREBALL AND METEORITE OBSERVATION OR UNIDENTIFIED FLYING OBJECT A 2809302 B…
- p. 138 …IT CHANGED COLORS FROM RED TO GREEN TO BLUE AND A DARK ORANGE WHEN HOVERING. (A) 03052 （B）UNKNOWN (C…
- p. 140 …ST UNCLAS AT0506 Motion can be NRC FIREBALL AND METEORITE OBSERVATION A. 27 FEB 67 00152 B. CLEAR C PIEDREFOND…
- 8 more pages mention it
8,000 pages of Declassified Canadian UFO Documents Document

Internet Archive· 2015-12-10· 300 pages · Cited by the stories · 1 story
- p. 23 …SLANSON UNIVERSITY OF BRITISH COLUMBIA UNCLAS ATO28 28 JUL FIREBALL AND METEORITE OBSERVATION OR UNIDENTIFIED FLYING OBJECT A 2809302 B…
- p. 138 …IT CHANGED COLORS FROM RED TO GREEN TO BLUE AND A DARK ORANGE WHEN HOVERING. (A) 03052 （B）UNKNOWN (C…
- p. 140 …ST UNCLAS AT0506 Motion Contra NRC FIREBALL AND METEORITE OBSERVATION A. 27 FEB 67 00152 B. CLEAR C PIEDREFOND WEST…
- 8 more pages mention it
Project Twinkle Final Report, November 1951 Report

Internet Archive (uploaded by Paul Galante)· 1951-11-27· 34 pages · Cited by the stories · 2 stories
- p. 18 …Report of Conference on Green Fireballs" (Project Gr1dge) TO: Commanding General Air Materiel Command Wright-Patterson Att"""'B Dayton, Ohio…
- p. 20 …Cambridge Research Laboratories letters , dated 7 IJovember 1949, subject: "Report of Conference on ' Green Fireballs" (Project Grudge) ." (See Inclosure No…
- p. 30 …rrhere has been no in- dication that even the somewhat strange observations often called Green Fireballs · are anythine but natural…
- 3 more pages mention it
Federal Aviation Administration: 237UAP00072 Official release

Department of Transportation. Federal Aviation Administration.· 2023· 1 pages · National Archives · 0 stories

…YES REMARKS At 0610 Harding County residents reported a green fire ball to the Harding County Sheriff, 82…
Project Blue Book report PDF (direct file) Report

USAF / Wikimedia Commons· 2 pages · Cited by the stories · 1 story
- p. 2 …Bluish green at rear. Distance: Assuming that it passed over Cumberland, Md. in the flight to Flatwoods, West Virginia, it…
Project Twinkle Final Report 1951 (PDF) Report

KLAS· 16 pages · Cited by the stories · 1 story
- p. 2 …There has been no indication that even the somewhat strange observations often called "Green Fireballs" are anything but natural phenomena…
- p. 4 …Oder of CRD attended a conference at Los Alamos, 14 October 1949 on the subject of "Green Fireballs" observed in…
- p. 10 …Lincoln La Paz, who expressed disbelief in all aerial phenomena except for the green fire-balls. The red fire-ball…
FBI file: UFO, UFO Part 11 FOIA release

Federal Bureau of Investigation· 127 pages · FBI Vault · 1 story
- p. 55 …An analysis just completed of the time distribution of the green fireballs so far observed permits us to add an…
- p. 72 …The other phenomena commonly referred to as green fireballs or discs he believed to be U.S. guided missiles being…
- p. 76 …On the contrary in the case of the green fireballs, plots of admissible approach sectors show that there is a…
- 10 more pages mention it
SCIENTIFIC ADVISORY PANEL ON UNIDENTIFIED FLYING OBJECTS 14- 17 January 1953 FOIA release

Central Intelligence Agency· 2000-11-13· 2 pages · CIA reading room · 4 stories
- p. 1 …Report of USAF Research Center, Cambridge, Mass., Investigation of "Green Fireball" Phenomena (Project TWINKLE). 6. Outline of Investigation of U…
Non-Orbit Sightings of Unidentified Flying Objects, 10 December 1953-2 March 1954 FOIA release

Central Intelligence Agency· 1954-05-26· 3 pages · CIA reading room · 0 stories

…The ball was white, edged with green, and was followed by a long trail. The phenomenon illuminated the…
AFOSI LaPaz Catalog raw data Document

NICAP· 22 pages · Cited by the stories · 1 story
- p. 1 …R=reliable; VR=very reliable; Unk=unknown reliability (1) Green fireball phemonena; (2) “disk” or variation; (3) Probable meteor 1…
- p. 18 168 500207 1950 2015 2 R Albuquerque, New Mexico SSE to E 40° - 45° above horizon horizontal reddish green Yes…
Non-Orbit Sightings of Unidentified Flying Objects, 10 December 1953-2 M Arch 1 FOIA release

Central Intelligence Agency· 1954-04-03· 6 pages · CIA reading room · 0 stories

…The ball was white, edged with green, and was followed by a long trail. The phenomenon illuminated the…
Intelligence Advisory Committee Unidentified Flying Objects FOIA release

Central Intelligence Agency· 1953-02-18· 7 pages · CIA reading room · 4 stories
- p. 4 …Report of USAF Research Center, Cambridge, Nass., Investigation of "Green Fireball" Phenomena (Project TWIRALE). 6. Outline of Investigation of U…
Intelligence Advisory Committee Unidentified Flying Objects FOIA release

Central Intelligence Agency· 1953-01-03· 7 pages · CIA reading room · 4 stories
- p. 4 …Report of USAF Research Center, Cambridge, Mass., Investigation of "Green Fireball" Phenomena (Project TWINKLE). 6. Outline of Investigation of U…
Letter to Secretary of Defense with Three Attachments Re Unidentified Flying Objects (UFO's) FOIA release

Central Intelligence Agency· 1953-03-13· 7 pages · CIA reading room · 4 stories
- p. 4 …Report of USAF Research Center, Cambridge, Mass., Investigation of "Green Fireball" Phenomena (Project TWINKLE). 6. Outline of Investigation of U…
box Incident Summaries 101-172 Official release

U.S. Department of War· 178 pages · PURSUE release (war.gov) · 4 stories

…Worth, offers "tangible proof that the fireball of February 18 over northern Kansas was just that, inasmuch as…
U.S. Air Force Analysis of Flying Objects in the United States, 101-172 Report

U.S. Department of War· 210 pages · PURSUE release (war.gov) · 4 stories

…Worth, offers "tangible proof that the fireball of February 16 over northern Kansas was just that, inasmuch as…
aaro historical record report volume 1 2024 Report

The Black Vault· 64 pages · Cited by the stories · 2 stories
- p. 16 …These UFOs were described as “green fireballs” streaking across the sky, moving in odd ways, and—in at least one…
Historical Record Report Volume 1 March 8 2024 Report

Office of the Secretary of Defense· 63 pages · OSD reading room · 2 stories
- p. 15 …These UFOs were described as “green fireballs” streaking across the sky, moving in odd ways, and—in at least one…
AARO Historical Record Report Volume 1 Report

All-domain Anomaly Resolution Office· 2024-03· 63 pages · Cited by the stories · 4 stories
- p. 15 …These UFOs were described as “green fireballs” streaking across the sky, moving in odd ways, and—in at least one…
Unidentified flying objects: hearing before the Committee on Armed Forces of the House of Representatives, Eighty-ninth Congress, second session, April 5, 1966 ... Hearing transcript

U.S. House Committee on Armed Services· 1966-04-05· 88 pages · Cited by the stories · 3 stories

…6003 FIREBALL REPORT Persons observing a fireball or meteor should report the information to the American Meteor Society…
Report on the Historical Record of U.S. Government Involvement with Unidentified Anomalous Phenomena, Volume I Report

All-domain Anomaly Resolution Office· 2024-03-08· 63 pages · AARO · 4 stories
- p. 15 …These UFOs were described as “green fireballs” streaking across the sky, moving in odd ways, and—in at least one…
1948 07 9670642 20Mi SofMontgomery Ala 144 (Project Blue Book case file) Document

Internet Archive· 2015-12-05· 161 pages · Cited by the stories · 2 stories

…It is not unusual for a fireball to be seen along a path several hundred miles long. There…
Project Blue Book case file, Chiles-Whitted (PDF) Document

The Black Vault· 162 pages · Cited by the stories · 2 stories

…It is not unusual for a fireball to be seen along a path several hundred miles long. There…
Office of the Secretary of Defense: 05_AARO_Historical_Record_Report Official release

Department of Defense. Office of the Secretary of Defense.· 2023· 63 pages · National Archives · 2 stories
- p. 15 …These UFOs were described as “green fireballs” streaking across the sky, moving in odd ways, and—in at least one…
Comments and Suggestions of UFO Panel (PUBD Unknown) FOIA release

Central Intelligence Agency· 1953-01-21· 21 pages · CIA reading room · 8 stories
- p. 20 …Report of USAF Research Center, Cambridge, Mass., Investigation of "Green Fireball" Phenomena (Project TWINKLE). 6. Outline of Investigation of UFO…
Comments and Suggestions of UFO Panel (PUBD Is Unknown) FOIA release

Central Intelligence Agency· 1953-01-03· 22 pages · CIA reading room · 8 stories
- p. 21 …Investigation of "Green Fireball" Phenomena (Project TWINKLE). 6. Outline of Investigation of UFO's Proposed by Kirtland Air Force Base…
Transcript of a Presentation by Captain Edward J. Ruppelt, 1952 Hearing transcript

U.S. Department of War· 1952-03-26· 19 pages · PURSUE release (war.gov) · 6 stories
- p. 10 10 phenomena or object or something floating around down that area, and that's these green fireballs. Now, I don…
- p. 16 …And then there's that 20% like the green fireballs and the lights that we just do not have an…
Transcript of a Presentation by Captain Edward J. Ruppelt, 1952 Hearing transcript

war.gov· 1952· 19 pages · Cited by the stories · 7 stories
- p. 10 10 phenomena or object or something floating around down that area, and that's these green fireballs. Now, I don…
- p. 16 …And then there's that 20% like the green fireballs and the lights that we just do not have an…
Report of Meetings of Scientific Advisory Panel on Unidentified Flying Objects Convened by Office of Scientific Intelligence, CIA January 14- 18, 1953 FOIA release

Central Intelligence Agency· 2013-06-26· 38 pages · CIA reading room · 7 stories
- p. 5 …Alvarez while reports of Green Fireball phenomena, nocturnal lights, and suggested programs of investigation were routed to Dr. Page. Following…
- p. 29 …Report of USAF Research Center, Cambridge, Mass., Investigation of "Green Fireball" Phenomena (Project TWINKLE). 6. Outline of Investigation of U…
CIA-RDP79B00752A000300100010-4 Document

The Black Vault· 39 pages · Cited by the stories · 7 stories
- p. 6 …Alvarez while reports of Green Fireball phenomena, nocturnal lights, and suggested programs of investigation were routed to Dr. Page. Following…
- p. 30 …Report of USAF Research Center, Cambridge, Mass., Investigation of "Green Fireball" Phenomena (Project TWINKLE). 6. Outline of Investigation of U…
Baker report, 1968 congressional hearings Hearing transcript

NICAP· 1968· 68 pages · Cited by the stories · 3 stories
- p. 20 …Robey, D.H. (1960) "A Hypothesis on the Slow Moving Green Fireballs," Journal of the British Interplanetary Society, Vol. 17…
Meetings of OSI Advisory Group on Unidentified Flying Objects, 14-17 January 1953 FOIA release

Central Intelligence Agency· 2001-06-05· 19 pages · CIA reading room · 4 stories
- p. 12 …Report of USAF Research Center, Cambridge, Mass., Investigation of "Green Fireball" Phenomena (Project TWINKLE). 6. Outline of Investigation of U…
Assorted NMCC documents Document

NICAP· 40 pages · Cited by the stories · 2 stories

…A very brilliant meteor or fireball is reported to have passed in your vicinity on . . . at the hour…
Project Blue Book case file: Levelland, November 2-3, 1957 (81 pages) Document

USAF / National Archives via The Black Vault· 82 pages · Cited by the stories · 1 story
- p. 39 …to a bluish green color when it settled on the highway, then changed to a fireball again when it rose…
- p. 45 …It had a bluish-green glow, and it appeared 150 to 200 feet long." 5, p. 114 Those who wanted…
UFO Reports 2008 Report

Ministry of Defence· 26 pages · Cited by the stories · 2 stories

…12-Feb-08 Not stated Opposite House of Parliament London There was a craft that had green, red…
CIA-RDP81R00560R000100030027-0 Document

Internet Archive (uploaded by Emma Best)· 2017· 28 pages · Cited by the stories · 7 stories
- p. 5 …For example, case histories involving radar or radar and visual sightings were selected for while reports of Green Fireball phenomena…
Report of Meetings of the Office of Scientific Intelligence Scientific Advisory Panel on Unidentified Flying Objects, January 14-18, 1953 FOIA release

Central Intelligence Agency· 1953-02-16· 32 pages · CIA reading room · 8 stories
- p. 29 …Report of USAF Research Center, Cambridge, Mana , Investigation of Green Fireball* Frennora (Project NWKLE). 6. Outline of Investigation of U…
NZDF declassified RNZAF UFO files Document

NZDF / RNZAF via Internet Archive· 2010-12· 445 pages · Cited by the stories · 1 story
- p. 154 …Tapering abruptly behind this white mass was a short fiery tail of bluish-green - much like the tonguing flame of…
- p. 155 …Case 99, Cincinnati, Columbus, Ohio, August 14th, 1955 - A bright kelly green fireball, streaking silently north to south lighted Cincinnati…
- p. 267 …They were variously described as pear-shaped, cigar-shaped, and round, while their colour shadings were given as blue, green…
- 2 more pages mention it
FBI file: UFO, UFO Part 15 FOIA release

Federal Bureau of Investigation· 77 pages · FBI Vault · 0 stories
- p. 72 …100. # New 'Fireball' Raises An Old Question: Do Flying Saucers Exist? --nobody known what the objects are or where come…
FBI file 62-HQ-83894, section 10 Document

Department of War· 184 pages · Cited by the stories · 2 stories
- p. 13 …STREET JOURNAL 2 M6nday-, Oiecelfther 13, 1965 New 'Fireball' Raises An Old Question: Do Flying Saucers Exist? Californian, W4o 'Talks…
65 HS1-834228961 62-HQ-83894 Section 010 Official release

Federal Bureau of Investigation· 184 pages · PURSUE release (war.gov) · 1 story
- p. 13 …STREET JOURNAL 2 M6nday-, Oiecelfther 13, 1965 New 'Fireball' Raises An Old Question: Do Flying Saucers Exist? Californian, W4o 'Talks…
Robertson Panel Report Report

The Black Vault· 1953· 29 pages · Cited by the stories · 8 stories
- p. 6 …25X1A sightings were selected for while reports of Green 25X1A Fireball phenomena, nocturnal lights, and suggested programs of 25X1A investigations…
assort1 FOIA release

Office of the Secretary of Defense· 40 pages · OSD reading room · 2 stories

…A very brilliant meteor or fireball is reported to have passed in your vicinity on . . . at the hour…