This is a clip from the hearing held by the Oversight on Accountability committee on July 26, 2023 regarding the threat posed by Unidentified Anomalous Phenomenon (UAP). The witness testified, under oath, that there are frequent sightings of these "black cubes" with no wings nor any apparent sign of propulsion.

Full video is available here: https://www.youtube.com/watch?v=KQ7Dw-739VY