Many religions state or imply that Earth is the only planet with life on it, at all. Whether in theory or in fact, having life on another planet directly contradicts this and makes the basis of some beliefs completely invalid.
However, it should be noted that alien life is not contradictory of religion in general, only specific religions. For example, some religions base the creation of earth or humanity on alien appearance and/or fully embrace the concept of alien life existing.
There is no evidence yet to suggest their is an existence of aliens... But in the future, who knows?
Everything is contradicted by some religion.
Yes.
yes
Scardox aliens do not mate. Science has never confirmed the existence of aliens as of 2014, though many people believe they are real.
Aliens have nothing to do with religion, as the afterlife and God are metaphysical, and aliens and UFO's are earthly beings. Quite true. Aliens and UFOs both spring from the mind of Earth humans. The arrogance of assuming anything in the sky we can't ID is an alien spacecraft! The silliness of assuming the existence of aliens, despite not the slightest shred of proof!
Contrapositive
the existence of bigfoot, space shuttles, and probing
Aliens
Even with all the speculation about aliens and UFOs, there are no records about the existence of space aliens. Sorry.
A plain idiot.
Aliens are typically considered to be fictional or speculative beings that have not been proven to exist. There is no conclusive evidence to support the existence of extraterrestrial life forms visiting Earth. While the idea of aliens has been popularized in science fiction, there is a lack of scientific evidence to confirm their existence.