No recognizable pattern to locations or time; however, when there has been a sighting somewhere there often are more close by and soon afterwards.
NO!
Yes.
Type in Alien sightings on the net and see what it comes up with, i got some great material.
I think it is Rosswell, New Mexico
"Aliens must exist because there are countless reports of alien sightings." This statement is an example of begging the question because it assumes the truth of the claim (aliens exist) in order to support the argument (alien sightings are real).
An alien report sighting can be reported to the local media or to NASA. Often times sightings can be found to be a fraud and will be put aside for more important tasks.
Sightings, crash sites and alien abductions. The Steven Speilberg movie Close Encounter of the Third Kind is a good illistration, the third kind being face to face interaction.
Apparently, there have been strange sightings, but there has been no evidence or proof that an extraterrestrial being (alien) has actually been seen.
Probably Nevada for the most sightings/Area 51 overall or NM, because of Roswell.
One of the most well documented UFO sightings occured in 2005 in Xapala, Mexico.
there have been sightings of alien spacecrafts but nobody knows if those people were crackpots or what so really, no one has any idea
Now, let's get serious. There are no aliens known to exist, just a bunch of anecdotes, and no matter how high you stack anecdotes, they never become evidence. We hope there is other life out there, and we consider it likely. But someone has to be the first form of intelligent life in the universe, and there is no evidence that it isn't us.