Near Denver, ColoradoMay 1957

Unidentified

Summary

On May 2, 1957, at about 11:30 p.m. local time, a civilian near Denver, Colorado reported a sighting. The witness was a technical motion picture writer based in Orlando, Florida. The sky was clear.

The person saw one disc shaped object about the size of a hockey puck. It had a reddish glow and a cone shaped tail of blue flame. It moved across the sky in a straight path and disappeared behind mountains. The sighting lasted about four seconds.

The report notes normal air carrier traffic was in the area. The Air Force record (Project 10073, its official file for unidentified flying object reports) lists the case as astronomical and concludes it was a possible meteor.

Reported location

Near Denver, Colorado

Date of incident

May 1957

State / country

CO / US

Page count

3 scanned pages

USAF evaluation

unidentified

Microfilm

T1206, Roll 27

Original case file scans

Original case file · scanned by NARAPage 1 of 3

View transcribed text

E
| 248 \
| 8 !
7 : PROJECT 10073 RECORD CARD
1. DATE 2. LOCATION 12. CONCLUSIONS
: Re iy b : 0 Was Balloon |
2 May 1957 Near Denver, Colorado 0 Probably Balloon |
eee eee eee eee eee ee ree eee eee} Possibly Balloon
3. DATE-TIME GROUP 4. TYPE OF OBSERVATION 2
4 LV gd 0 Wos Aircraft
Locel RE RS RiGround-Visuol 0 Ground-Rader 0 Probably Aircrof?
: OME RIL07B00 1 0 Air-Visuol D Air-Intercopt Radar | Possibly Aircraft
5. PHOTOS 8. SOURCE IX Was Astronomical Meteor
D Yes 00 Prohobly Astronomical
bs 8 No Civilian 0D Possibly Astronomical |
{ 7. LENGTH OF OBSERVATION 8. NUMBER OF OBJECTS | 9. COURSE 371: Qt he plat aia Ba ies dfn efi on 1 ;
0 Insufficient Data for Evaluation
i 0 Unknown
: 4 seconds one | traight paths
! 10, BRIER SUMMARY OF SIGHTING 11. COMMENTS
One object, disc shaped, size of Possible meteor,
: hockey puck, reddish glow, object
had cone shaped tail of blue flame, !
| disappeared behind mountains, x
ATIC FORM 329 (REV 26 32ZP 52)

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Source: National Archives Catalog · NAID 28969822