UFO religions generally deal with belief in communication with extraterrestrial beings. There may also be the possibility of an infestation by an extraterrestrial lifeform. This is one consideration in terms of planetary habitability or the possibility of extraterrestrial life. The term is widely used for claimed observations of extraterrestrial spacecraft. They also tend to support the space program and the idea of contacting extraterrestrial civilizations. No signals of intelligent extraterrestrial origin were detected. The discovery of exoplanets has intensified interest in the search for extraterrestrial life. This places limits on the occurrence of extraterrestrial civilisations. No credible evidence of extraterrestrial origin has been presented. Baba Vanga also predicted the existence of extraterrestrial djinns. In 1959, Roman wrote a paper on the detection of extraterrestrial planets. She starred as a scientist searching for extraterrestrial life in the SETI project. Hess slowly discovers that the phenomenon is a result of extraterrestrial life. This was defined by Greer as human initiated contact and/or communication with extraterrestrial life. Akeley has disappeared along with all the physical evidence of the extraterrestrial presence.