ABSTRACT. On the basis of statistical calculations on galactic migration which bring the necessity of insertion of a new parameter inside the Drake formula, the work-hypothesis named SETV predicts that exogenous vehicles and/or probes may have reached the Solar System too, including Earth. The technology which is now available is able to allow sensing operations both in the extreme borders of the solar system and on our own planet. The possible presence of probes of possible extraterrestrial origin on our planet may be ascertained by using a network of sensing stations which are placed in critical areas. One of them is the norwegian area of Hessdalen, where the two scientific explorative missions of “Project EMBLA” have carried out measurements which demonstrate the existence of all the anomalies of the luminous phenomenon which is present there. At present nothing proves scientifically that our planet is being visited by alien intelligences, nevertheless the remarkable peculiarity which was learnt in some areas of recurrence demonstrate that the verified phenomenology, of extreme importance for fundamental physics, presents characteristics which deserve a further investigation with highly sophisticated instrumentation.
INTRODUCTION : FROM SETA TO SETV
In the general context of the SETI project a new branch named SETV (Search for Extraterrestrial Visitation) was born and recently developed. This research is aimed at studying, by using the well-experimented methods of official physical science, the possible evidence of the visitation of probes, probably of robotic type, of exogenous origin inside our solar system [1, 15, 17, 19, 20, 24]. The SETV strategy is devoted to the monitoring of the entire solar system inside a sphere with a radius of 50 astronomical units with Earth in its center [17]. The use of space satellites equipped with specific detectors such as high-sensitivity infrared CCD cameras, coupled with ground-based stations such as radars and radiotelescopes connected with multichannel spectrum analyzers, wide-field and low-aperture optical telescopes (for search) and high-aperture optical telescopes (for analysis), may allow researchers to establish the possible evidence of anomalies associated with low-luminosity exogenous probes, possibly of the “Dyson sphere” type too, which are presumably located, according to predictions, in energetically favourables zones such as the Earth-Moon libration points, the asteroidal belt, the Moon and the circumlunar and circumterrestrial orbits [2, 3, 5, 10, 12]. This specific aspect of the research, already known as SETA (Search for Extraterrestrial Artifacts) is justified by statistical calculations of “galactic migration” which, based on the addition of a new parameter to the Drake formula, predict that our galaxy may have been colonized in a time lapse of the order of one million years and that the Earth itself may have been visited numerous times since the arrival of homo sapiens [11, 25]. On the basis of physical theories derived from general relativity it is also possible that ET civilizations of superior level may be able to use space-time tunnels such as “wormholes” [9]: this would shorten a lot the time of travel.
Even if it is generally aknowledged that at present no scientific proofs exist that Earth has been visited de facto, the SETV project considers also the possibility to monitor Earth with proper instrumentation [17, 20]. The possible presence on Earth of explorative devices of possible exogenous origin, would appear necessarily like anomalies in our atmosphere, which might be characterized by luminous phenomena in case, in the skies of some areas of Earth. On the basis of this work-hypothesis a network of instrumented sensing stations (both automatic and not) is planned to be implemented in the next future to be placed in specific areas of Earth where anomalous atmospheric events are reported very often. Instruments such as small telescopes of both photometric and spectroscopic type coupled with high quantum-efficiency CCD detectors, sensors operating in the near infrared and near ultraviolet wavelength windows, detectors of high-energy events (X and Gamma), radio spectrum analyzers operating both in the ultra-low frequencies (ELF-ULF) and in the microwaves (UHF), magnetometers and radars for searching and tracking any target, are intended to be used as a basic instrumentation. About 30 of the areas of Earth where such kind of anomalies are present in a recurrent way, have been identified indeed. The norwegian area of Hessdalen is the most important of them [16, 22], where since 1984 visual, magnetometric, radar and radiometric recordings have been carried out, and where an automatic sensing station is operational since 1998, being it equipped with several types of wide-field and zoom CCD cameras and a radar, able to record in real time the apparition of anomalous luminous phenomena. Such phenomena behave in a multiform way, show to have a long duration (up to 2 hours) and produce sometimes an enormous emission of energy (up to 1 MW).
Related link: http://www.zeitlin.net/OpenSETI/Docs/EuroSETI2002_OSI.htm