four flying saucers or alien spaceships, also known as ufo or uap, hovering in the night sky

ufo alien spaceship uap flying saucer night sky hovering invasion mystery unidentified object anomalous phenomenon dark landscape fog mysterious science fiction scifi extraterrestrial life abduction copy space travel light beam ray eerie spooky scary creepy fantasy surreal illustration background wallpaper no people nobody extraterrestial unexplained phenomena intelligent technology advanced sighting four ai generated