“Improved instrumental techniques, including isotopic analysis, applicable to the characterization of unusual materials with potential relevance to aerospace forensics”
https://www.docdroid.net/IO2hKxr/1-s20-s0376042121000907-main-pdf

https://www.nextgov.com/emerging-tech/2021/12/defense-spending-bill-contains-most-significant-ufo-legislation-1960s/187440/

Some significant development as the National Defense Authorization Act for fiscal 2022 would mandate the formal establishment of a federal office, organizational structure, and authorities to confront unidentified aerial phenomena, the Defense Department’s modern term for UFOs.
(Ref. pages 1491 onwards).

Some very interesting content, in particular how finally the scientific research’s angle is tackled:

” SCIENTIFIC, TECHNOLOGICAL, AND OPERATIONAL ANALYSES OF DATA ON UNIDENTIFIED AERIAL 16 PHENOMENA.”:

…. The head of the Office established under subsection (a), on behalf of the Secretary and 5 the Director, shall supervise the development and execu tion of a science plan to develop and test, as practicable, scientific theories to—
(1) account for characteristics and performance of unidentified aerial phenomena that exceed the 10 known state of the art in science or technology, including in the areas of propulsion, aerodynamic control, signatures, structures, materials, sensors, countermeasures, weapons, electronics, and power generation; and
(2) provide the foundation for potential future investments to replicate any such advanced characteristics and performance.