No one knows
(alternate answer)
According to my information, it is ghosts which are mythical, and aliens which exist (although they exist in distant locations and we haven't met them yet).
There are so many annecdotal reports about ghosts and aliens and many other fringe type subjects, that it is very easy to get confused by all the misinformation. Read "The Demon Haunted World" by the late Carl Sagan, for more information.
I'd say neither because they don't exist (you might say ghosts do but they're only spirits) and even if aliens did, they probably wouldn't be vey clever.
From a Habbo Chat: "Tokio.Hotel-VIP: No we don't believe in ghosts but we hope aliens exist." Apparently Bill does not believe in ghosts.
Ghosts Aliens - 2010 TV was released on: USA: 2010
The movie? no well...unless someone threw it at you. However I assume you mean a poltergeist and no they cant. In the same sense that a pixie can't hurt you. There is no peer review evidence that ghosts exist in any form and as a rule something that does not exist cannot hurt you. However since your asking this question I can safely assume you believe ghosts exist, in which case, if ghosts do in fact exist, there has yet to be a documented case of one ever injuring a human. This means one of three things 1. Ghosts do not exist. 2. Ghosts exist but cannot harm you. 3. Ghosts exist and can harm you but never do.
There is no proof that aliens exist. I believe there is no such thing as aliens. Has anyone seen an alien ship? Has anyone seen an alien? No.
NO Ghosts do not exist.
Ghosts do not exist.
The leading scientific hypothesis about ghosts is "Ghosts do not exist."
Nothing. There are no aliens known to exist.
well not really, in a movie you see stuff like that but in my opinion no they cant ghosts are just peaceful spirits that maybe if they exist move stuff but no the wont kill you
Most people and myself think it's just imagination but a minority of people will disagree.
No. Ghosts do not exist.