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SCU Publishes Study On UAP Shapes, Sizes, Kinematic And Electromagnetic Effects


Washington, DC, United States, December 12, 2023 – The Scientific Coalition for UAP Studies (SCU), a data-driven organization of scientists, academics, and research professionals dedicated to conducting and supporting open scientific research into unidentified anomalous phenomena (UAP), released the following announcement:

Today, the SCU published “The Reported Shape, Size, Kinematics, Electromagnetic Effects, and Presence of Sound of Unidentified Aerial Phenomena from Select Reports, 1947-2016” by Robert M. Powell, Larry Hancock, Laiba Hasan, Sarah Little, Robinson Truong, and Tobi Kamoru.

This paper provides robust information on basic UAP shapes and associated sizes, kinematic and electromagnetic effects, and presence of sound, collected from 301 UAP reports submitted between 1947 and 2016. The analysis draws on raw UAP report data from five primary databases, one military, and four civilian. The approach minimizes the uncertainty in these witness reports by selecting for the reliability of observations, object angular size greater than 0.15 degrees, sufficient lighting, and sufficient information detail.

“This study allowed us to identify some interesting characteristics of the disk and triangle shapes,” said Robert Powell, Executive Board Member. “This paper will help inform the design of theory, experiments, and instrumentation to advance our understanding of the nature, causes, and consequences of UAP.”

Of note, the combination of unusual kinematic range and absence of sound was found in sixteen robust reports, which specifically mentioned objects that could hover, traveled faster than Mach 1, and exhibited an absence of sound.

To read the study, please visit Zenodo:

To read all SCU publications, please visit the SCU’s catalog of papers:



SCU promotes and encourages the rigorous scientific examination of UAP, commonly known as Unidentified Flying Objects (UFOs). SCU comprises scientists, engineers, members of the high-tech and defense industries, former military, and other professionals, utilizing scientific principles, methodologies, and practices to advance the study of UAP observed and reported around the globe.


The Scientific Coalition for UAP Studies is a 501(c)(3) charitable organization. Contributions to SCU are tax-deductible. 




SCU Publishes Study On UAP Shapes, Sizes, Kinematic And Electromagnetic Effects
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