IB-40 Heavy Water Nuclear Facility, Sultanabad

The IB-40 facility represents a modern industrial archaeological site rather than an ancient one, belonging to Iran's contemporary nuclear development efforts that began in earnest during the late 20th century. The facility's construction and operation reflect the technological capabilities and political priorities of modern Iran, making it unique among sites typically featured in discussions of ancient mysteries.

The November 2004 incident has been documented primarily through military and aviation channels, though official Iranian government records remain largely classified or unreleased to the public. According to available reports, Iranian Air Force personnel detected an unidentified object on radar systems, which allegedly caused electromagnetic interference with ground-based equipment. The response involved scrambling F-14 Tomcat fighter aircraft to investigate the aerial anomaly.

While the incident has been reported in various aviation and UFO research circles, independent verification of the specific details remains limited due to the classified nature of military operations and the sensitive location of the nuclear facility. The electromagnetic interference reported during the incident aligns with similar phenomena documented at other nuclear installations worldwide, though conventional explanations for such disruptions typically involve equipment malfunctions, atmospheric conditions, or human error.

What remains genuinely unknown is the precise nature of what was detected on radar that November evening, as no official explanation has been publicly released by Iranian authorities. The incident continues to be cited by researchers investigating potential connections between unidentified aerial phenomena and nuclear facilities, though the lack of declassified documentation makes scientific analysis challenging.