Extraterrestrial theories and UFO sightings are not exclusive to the 21st century, where those who claim to have seen such beings always have an awful camera on hand to take a photo of what usually appears as nothing more than a lens flare.
Evidence (if you can call it that) such as these photos pretty much fall into the “Big Foot” category of viable proof.
The bit that really matters in a reported alien/UFO sighting is what the witnesses have to say. Witnesses from across the globe commonly report seeing disk and triangle-shaped crafts with lights arranged in various patterns. The frequency in which these details arise after a sighting, is undeniably convincing.
In fact, these UFO descriptions correlate pretty well with one of the earliest known UFO sightings. In 329 BC Alexander the Great documents seeing “two great silver shields, spitting fire around the rims in the sky” (Mancusi). There are numerous UFO sightings throughout history, all reporting similar phenomena. Cristóbal Colón (better known as Christopher Columbus) reportedly saw “a light glimmering at a great distance” that “vanished, only to reappear several times during the night, each time dancing up and down in sudden and passing gleams” (Christopher Columbus UFO Sighting). These are only 2 examples of the many historical UFO sightings.
What this tells us is that extraterrestrials have been visiting Earth for much longer than we really anticipate. If these are the earliest known sightings, just imagine how far back their first visit must have been. Unless they never left. (O.o)
“Christopher Columbus UFO Sighting in 1492.” UFO Evidence. N.p., n.d. Web. 29 Jan. 2015.
Mancusi, Bruno. “329 BC: Alexander the Great Records Two Great ‘flying Shields'”UFO Evidence. N.p., 18 Apr. 2003. Web. 29 Jan. 2015.