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NASA commissioned a research team to study Unidentified Aerial Phenomena (UAP), observations of events that cannot scientifically be identified as known natural phenomena. The Main Astronomical Observatory of NAS of Ukraine conducts an…

Popular Physics · Physics 2022-12-01 B. E. Zhilyaev , V. N. Petukhov , V. M. Reshetnyk

NASA commissioned a research team to study Unidentified Aerial Phenomena (UAP), observations of events that cannot scientifically be identified as known natural phenomena. The Main Astronomical Observatory of NAS of Ukraine conducts an…

Instrumentation and Methods for Astrophysics · Physics 2022-09-20 B. E. Zhilyaev , V. N. Petukhov , V. M. Reshetnyk

We use high-tech observations of Unidentified Aerial Phenomena (UAP) class objects to evaluate their characteristics. We present data in three cases. (1) Multi-side daytime observations of UAPs over Kiev. (2) Night observations of a group…

Space Physics · Physics 2025-03-10 Boris Zhilyaev , Vladimir Petukhov , Sergey Pokhvala

Unidentified Anomalous Phenomena (UAP) have historically been stigmatized and regarded as pseudoscience due to a general lack of robust evidence. Recently, however, the subject has gained interest among astronomers and the military. This…

Instrumentation and Methods for Astrophysics · Physics 2024-11-06 Beatriz Villarroel , Kevin Krisciunas

Unidentified Anomalous Phenomena (UAP), also known as Unidentified Flying Objects (UFOs), has shifted from being a stigmatized topic on the fringes of scientific inquiry to a legitimate subject of scientific interest with a need for high…

Digital Libraries · Computer Science 2024-07-09 Gretchen R. Stahlman

A recent report by astronomers about Unidentified Aerial Phenomena (UAP) in Ukraine (arXiv:2208.11215) suggests dark phantom objects of size 3-12 meters, moving at speeds of up to 15 km/s at a distance of up to 10-12 km with no optical…

Instrumentation and Methods for Astrophysics · Physics 2022-10-06 Abraham Loeb

Witness reports of Unidentified Aerial Phenomena (UAP) occasionally associate UAP sightings with local electromagnetic interferences, such as spinning magnetic compasses onboard aircraft or sudden malfunctions of mechanical vehicles. These…

Instrumentation and Methods for Astrophysics · Physics 2025-07-16 Foteini Vervelidou , Alex Delacroix , Laura Domine , Ezra Kelderman , Sarah Little , Abraham Loeb , Eric Masson , Wes A. Watters , Abigail White

Over the past several years, the misidentification of SpaceX Starlink satellites as Unidentified Aerial Phenomena (UAP) by pilots and laypersons has generated unnecessary aviation risk and confusion. The many deployment and orbital…

Physics and Society · Physics 2024-04-05 Douglas J. Buettner , Richard E. Griffiths , Nick Snell , John Stilley

In July 2021, faculty from the UAlbany Department of Physics participated in a week-long field expedition with the organization UAPx to collect data on UAPs in Avalon, California, located on Catalina Island, and nearby. This paper reviews…

Instrumentation and Methods for Astrophysics · Physics 2025-07-01 M. Szydagis , K. H. Knuth , B. W. Kugielsky , C. Levy

Measurements of a wide variety of aerial phenomena such as drones, birds, planes, and other aerial objects can in principle be obtained from open access radio detection and ranging equipment. Passive strategies involve existing cell towers…

Popular Physics · Physics 2022-03-17 Karl Svozil

To date, there are little reliable data on the position, velocity and acceleration characteristics of Unidentified Aerial Phenomena (UAP). The dual hardware and software system described in this document provides a means to address this…

Instrumentation and Methods for Astrophysics · Physics 2023-05-31 Matthew Szenher , Alex Delacroix , Eric Keto , Sarah Little , Mitch Randall , Wesley Andrés Watters , Eric Masson , Richard Cloete

Astronomers occasionally detect an object having unexpected shape, unexplainable photometry, or unprecedented spectra that are inconsistent with our contemporary knowledge of the universe. Upon careful assessment, many of these anomalies…

Popular Physics · Physics 2023-10-24 Beatriz Villarroel , Geoffrey W. Marcy

For much of February 2023, the world was in panic as repeated balloon-like unidentified flying objects (UFOs) were reported over numerous countries by governments that often responded with military action. As a result, most of these craft…

Popular Physics · Physics 2023-03-31 Michael B. Lund

Anomaly detection is a key goal of autonomous surveillance systems that should be able to alert unusual observations. In this paper, we propose a holistic anomaly detection system using deep neural networks for surveillance of critical…

Computer Vision and Pattern Recognition · Computer Science 2020-11-06 Ilker Bozcan , Erdal Kayacan

An unmanned autonomous vehicle (UAV) is sent on a mission to explore and reconstruct an unknown environment from a series of measurements collected by Bayesian optimization. The success of the mission is judged by the UAV's ability to…

Machine Learning · Statistics 2021-04-09 Antoine Blanchard , Themistoklis Sapsis

Advances in astronomy are often driven by serendipitous discoveries. As survey astronomy continues to grow, the size and complexity of astronomical databases will increase, and the ability of astronomers to manually scour data and make such…

Instrumentation and Methods for Astrophysics · Physics 2019-01-09 Daniel Giles , Lucianne Walkowicz

To date there is little publicly available scientific data on Unidentified Aerial Phenomena (UAP) whose properties and kinematics purportedly reside outside the performance envelope of known phenomena. To address this deficiency, the…

SNAD is an international project with a primary focus on detecting astronomical anomalies within large-scale surveys, using active learning and other machine learning algorithms. The work carried out by SNAD not only contributes to the…

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