Are Aliens Real? (real alien sightings video footage, alien abductions, space aliens exist, ufos pictures, extraterrestrials)

Are there extraterrestrial aliens on planet earth?

Here are the main possibilities

1) Aliens live in the core of Earth

Edmund Halley (of Halley’s comet fame), Jules Verne, Edgar Allan Poe et al. have advanced the notion of aliens living inside the earth, either deep in caves or inside a hollow alien-created sphere we know as Earth.

2) Aliens cohabitate Earth in a different dimension

Humans deal in a three dimension world, or a four dimension world if one would like to include time as a fourth dimension.  If we postulate other dimensions, those could be inhabited by aliens, who we would not directly experience as they would be outside our five senses.

3) Aliens are on earth as life of extraterrestrial origin

This theory postulates that life from other planets could travel to earth either by radiation pressure, as microorganisms in rock, or by some deliberate attempt by extraterrestrials to seed the universe.

4) Hybrid aliens

Based on abduction reports, some believe that aliens (primarily Greys) are making human alien hybrids.  One method is to extract human eggs  and sperm and combine them with alien DNA.

5) Aliens in collaboration with the government

A Men in Black theory that aliens and the government have reached an agreement to let aliens live on Earth, perhaps in exchange for their advanced technology.

6) Matrix reality

Like the movie, this idea is that aliens control the Earth, and have created a virtual reality for humans.  Humans are actually in a womb-like container their entire lives, being feed computer generated sights, sounds, touch, smell, taste.  Aliens are able to harvest energy from humans.

Which of these six scenarios do you believe is most likely?

And now for something completely different:

Just having some fun w/ photoshop to make this
Nicole Kidman Space-Alien/Earth-Human Hybrid