Unidentified Aerial Phenomena and Sensor Gaps: A DNI Report Calling for Systematic Data Collection

To the point

Airspace is not fully covered by sensors, leaving many unidentified aerial phenomena, as a nine‑page report to the Office of the DNI lists over 100 cases, of 144 reports nearly half appeared on only one sensor, some captured by Navy pilots or identified as balloons, others as clutter or foreign systems, with no evidence of interplanetary visitors, while satellites and radar have limited reach and miss small objects, eyewitness accounts can be fallible, so more systematic data collection and funding are needed to sharpen understanding.

The sky is full of potential UFOs—heres why
popsci.com

The sky is full of potential UFOs—heres why

Even with all of our satellites and radar systems, only a small percentage of the sky is actually being watched at any given moment.