What people are saying - Write a review
We haven't found any reviews in the usual places.
Conclusions and Recommendations
Summary of the Study
The Work of the Colorado Project
11 other sections not shown
Other editions - View all
Air Force aircraft altitude analysis angle angular anomalous propagation antenna appeared astronauts astronomical atmosphere azimuth ball lightning balloon base beam birds bolide bright camera Chapter cloud color Colorado project detected diameter direction disappeared distance earth echoes effects elevation event evidence extraterrestrial field film flying saucers ground horizon hypothesis identified incident indicated interview inversion investigation layer light magnetic meteor miles mirage motion moving NICAP night observed officer operator optical orbit Panel phenomenon photographs physical pilot planets Plate possible present Project Blue Book Project Grudge radar radio radiosonde range reflection refractive index Research result Robertson panel Ruppelt sample satellite scientific Section seen sighters sonic boom spacecraft speed star station surface target temperature temperature inversion tion track Tremonton UFO reports UFO sightings Unidentified Flying Objects velocity visible visual wavelength weather wind witness