An audio recording has surfaced in the UFO conspiracy theory blogosphere claimed to be the authentic "leaked copy" of the recording of an alien voice obtained from a UFO probe discovered on Mars by NASA's Opportunity and Curiosity rovers.
The recording, according to the purveyors of the latest bizarre conspiracy theory to emerge in the UFO community, is the alien reply to the message titled "Sounds of Earth" contained in the Voyager Golden Records (VGRs) sent into space by NASA in 1977 on Voyagers 1 and 2.
NASA sent the message recorded on vinyl discs in the forlorn hope that "advanced space-faring civilizations" would one day find them and respond. The message included general information about Earth and its diverse life forms, human civilization and culture.