Why do you need to prove the existence of aliens?

Nobody knows the answer to this question because nobody knows if aliens actually exist.

Because they have no solid, indisputable proof of their existence. uh...what about xenu?? just imagine aliens as giant spagetti monsters....now...prove there arn't there!

There is no evidence yet to suggest their is an existence of aliens... But in the future, who knows?

No aliens do not exist if you think they do prove it but on the other had if don't believe that they exist I'm just saying that you can't prove if you think you can go to prison

Mankind has not yet discovered the existence of aliens. So, zero.

the existence of released energy

There is no way to prove or show that aliens are real so we don't have the right to say.

No. Any person trained in logic will tell you that 'you cannot prove a negative'. If you want to disprove the existence of fairies you first attempt to try and prove their existence. And the best you can do is to fail to prove it. The option to prove it always exists.

Scardox aliens do not mate. Science has never confirmed the existence of aliens as of 2014, though many people believe they are real.

There is no positive scientific way to prove/show aliens exist therefore no one knows how they eat

Aliens need a home and a job.

No. But then can you prove that you do?

the existence of bigfoot, space shuttles, and probing

Even with all the speculation about aliens and UFOs, there are no records about the existence of space aliens. Sorry.

No. Spirituality is essentially the belief in a spiritual existence, which may or may not include magic. Even if it does, belief in something does not prove its existence.