yes there are many of them on mars and in the future i think they will visit our planet ('Earth')
No
As yet, humanity has found no signs of aliens (or any other life) on Mars, or anywhere else in the universe.
i believe in aliens because their is billions of planets in the universe that their could be aliens on a planet
there is no definite proof but aliens are likely to exist
there is aliens that like to party
It isn't completely clear what you mean with "interstellar aliens": aliens on planets surrounding other stars, or aliens capable of interstellar travel? In any case, it is currently unknown whether ANY life exists in other places of the Universe; whether it is aliens capable of interstellar travel, or even just bacteria on other planets. It seems likely, given the huge amount of planets in the Universe, that there is life somewhere else than Earth - but this hasn't been confirmed yet.
It is possible, but no one knows of any such planet. We don't know if there are aliens. Someone has to be the first form of intelligence in the universe, and there is no reason to think it isn't us.
No. It wouldn't be possible.
There is no need to worry; in real life there is no evidence, let alone proof, that there are any aliens. Someone has to be the first form of intelligent life in the universe, and there is no reason to believe it isn't us.
Into the Universe with Stephen Hawking - 2010 Aliens 1-1 is rated/received certificates of: Australia:G
There is no concrete proof either way since universe is largely unknown.
Whatever you imagine it to be. UFOs by definition are not known to be any form of aircraft or animal, and so are not known to have any wings whatsoever. Most definitely they are not known and proven to have anything to do with aliens, since there are no known aliens anywhere in the universe.