Documents / Report
This is the final report of the Scientific Study of Unidentified Flying Objects, conducted by the University of Colorado under Air Force contract F44620-67-C-0035, with Edward U. Condon as scientific director and Daniel S. Gillmor as editor. It was submitted to the National Academy of Sciences on 15 November 1968 for review. The report includes field studies, photographic and radar analyses, case studies, historical chapters and appendices such as the Robertson Panel report and the Twining letter.
in fields and yards after fall in).! from the sky. Ccnerally, no sighting
l)f identified O:l:' unide'.'ltified objects is associaterl with the fall. The
material is composed of metallic threads of lengths varying from a
fraction of an inch to a foot or more, generally with ma~y threads inter-
twined into a loose mass. Typical material pi this t~pe is described
by Keel (1967), who suggests that UFOs are using tbe earth as a kind
of garhage dump. Actually, "space grass" is aluminum "chaff" of the
various si zes and types used hv l11i I i tary aircraft to confuse tracking
radar (see Section VI, Chapter 5) •
Samples of material sent to t110 project for analysis because
of their a~sl\med UFO association \'I0rc mo~t commor'ly "space grass." The
first sample was received from observers of two ":.pace ;,hips" reported
over ~lanhattan Beach, Cnllf., on :; February ]957. The mat.erial appeared
2~ hr. after the sighting and was reported to have heen radioactive when
found. It was not radioactivt: wilen r' uni(k,1ti fied objects is associatecl with the fall. The
material is composed of metallic threads of lengths varying from a
fraction of an l.neh to a foot or more, geneTolly wi th ma',ly threads inter-
twined into a loose mass. Typical material :01' this t',pp is described
by Keel (1967), who suggests that UFOs are using t~e earth as a kind
of garhage clump. Actually, "space gross" is aluminum "chaff" of the
variou~ sizes and types used bv military aircraft to confuse tracking
radar (see Se(:tion VI, ChapteT 5) .
Samples of materi a1 sent to t!IC project for analysis because
(1f thei.r a~!'umed UFO a5~ociation v'"fC most commorly "space grass." The
first sample WHS rec('ivet\ from observers of two ":,pace ;;hips" reported
over ~lanhattan Beach, Crillf'. , on :, Fcbruilry 1957. The m'lt.erial appeared
2C: hr. after the sighting and was reported to have heen radioactive when
found. It was not radioactive wilen r('ceivcd. Analysi~ demonstrated it
to be 1145 alloy hard aluminum foil (haff dipoles with hoth u slip and
a stripe coating applied to the surfLcc of the foLl. Sjn"e the slip
coating was color coded red, it could he identified AS a product of the
FoIl Division of Revere Copper and Dins! Incorporated, Brooklyn, N. Y.
The company id'entificd the chaff as it:; product. TIps chaff could have
been dropped by aircraft. I t a 150 cou1 d have beeil carri cd at oft by
SotlJl'Jing rockets or h;illoons, ,Inc! relea;;cd at high altitude" for radflI
t.racking. T': i5 certain, however, that th:is s<lmplc of "space grass,"
like otht?r such ~:lmrle5 ~llbl1\i tted to th(' project for Z1nalysis, had a
qllite earthly origin, and wa~ not dt?P09itcJ by vehicles of extrB-terrestrifll
origin.
;'. ___ I)flrt~ of LJFO~;, or liFO hpliplncl1t
Frullk Edw"rds (l9(,h) di:iclls<;e,) thrt'l' ca~e~ in wlti(;h an lIFO or
part of an UFO is c1 aimed to have heen recovered: (1) a flyi n& disc
lola:, :reported to have CTHshed on Spit zuer gen bland i 11 1952 and
to hwe been recovered, badly damaged iJ\1t intact, hy the Norwe~ian
133 Report, from the classic collection. The PDF is mirrored here; the original link is under it. 1497 pages are in the text index: search them above, or from the library's search.