FBI records indicated the facility was temporarily closed to investigate the use of the observatory’s wireless internet service for child pornography.

The National Solar Observatory in Sunspot, New Mexico, was inexplicably closed to the public on September 6. No public explanations were given for the sudden closure, leading to unfounded speculations and rumors. Unsealed FBI documents have however revealed that the closure was due to an investigation of child pornography. The facility reopened on Monday.

According to FBI documents, the agency was investigating a janitor who consistently used the observatory’s wireless internet service for child porn. The worker used the free internet service to “download and distribute child pornography.” The unnamed janitor has yet to be arrested or charged for any federal offense, and no arrest warrant has been issued, according to the FBI.

Roswell Conspiracies Run Wild as National Observatory Suddenly Closed

The social media speculations surrounding the initial closure was fueled by the facility’s proximity to Roswell, New Mexico and two military installations. Roswell became famous in 1947 when it was rumored that UFOs were sighted in the town. The U.S. Air Force argued at the time that the unknown objects were top-secret high-altitude weather balloons.

In fact, UFO conspiracists said that before the 1947 incident, a flying saucer crashed close to Roswell with its alien crew unattended. It was said that government officials secretly removed the saucer and its crew for examination at a top-secret Nevada facility. This, however, is not the case with the recent closure of the National Solar Observatory.

FBI records indicated the facility was temporarily closed to investigate the use of the observatory’s wireless internet service for child pornography. The records contained a 39-page application for a warrant to search the suspect’s house. The warrant was signed by a U.S. magistrate in Las Cruces, New Mexico.

A raid of the janitor’s house on September 14 yielded three cell phones, five laptops, one iPad, an external hard drive, 16 thumb drives, 89 compact flash disks and several other materials.

The investigation is not closed yet, the FBI field office in Albuquerque said.