NASA Space Shuttle STS 115 official mission photo of an "ExtraTerrestrial BioSynthetic Entity" ( EBSE ), believed spaceborn infant mobius waveform propulsion system, a NASA astronaut refers to as an "eel" that others call a "Space Serpent." Report: http://conceptactivityresearchvault.wordpress.com/2011/01/27/nasa-ufo-alien-encounters/
The most enduring symbol of extraterrestrial life has to be the gray alien. With a vaguely humanoid body and strangely elongated features, grays are just human enough to be unnerving to most individuals and have, for the most part, replaced the idea of little green men from Mars. Some people feel that this depiction of life is ridiculous and might even disprove various close encounters.