How many different types of extraterrestrials have visited earth?

Question

Kooks only! No skeptics!

Answer 1

I would say as many as there are different types of universes out there - infinite!  

http://www.moonslipper.com/

Answer 2

Bacterea, Plant and Animal.

Answer 3

None. It is impossible for any life form outside of our Earth Plane, to visit our world. All this talk of ufo's and aliens is just imagination run riot. I am not a Skeptic, and do believe in, and have witnessed unusual events. I even have an Extraterrestrial friend come into my vibration. His name was Phyrillion Argonti. Coming from a planet some 3,000 years ahead of our time. I would believe him, far more than the absurd stories I read here.It is perfectly feasible for hysterical minds to create manifestations, and to that individual very real. But until I actually witness the event, I remain skeptical.

Answer 4

At least two.  They actually fought over me during an abduction.  I never knew my stock was so high.

Answer 5

If we go by the the evidence, no types of aliens have.

If we go by the many fanciful stories of alien abductions, then all sorts of aliens apparently have visited us.

Answer 6

Unknown.

Answer 7

None...though that doesn't stop people writing books or filling web sites with information describing many different species.

See http://www.maar.us/alien_species.html for example.

Answer 8

None that I know of.

Answer 9

From space, none. If you count interdimensional travel, at least 2 types.

OK, looks like kokopelli wants the best answer prize. lol

Answer 10

Gosh, there sure are lots of different types of aliens! There are so many that they have to be grouped into categories Some of these types of aliens are:

~ Humanoid;

*Human-like Aliens: One of the greatest problems for exobiologists today is the numerous human-like aliens reported in abductions, who look too much like us.

*Greys: Humanoid, but smaller, with almond-shaped heads, big black eyes, really little mouths, no noses, and oh yeah, they’re also grey.

*Little Green Men: About the same as greys, but are green colored and don't look that scary. Can be founded from traffic lights.

~Mammaloids

*Plushies: Interstellar nomads bent on galactic domination via mind control.

*Grues: Box-shaped gap-toothed mammal known for eating humans. Developed by the Plushies.

*Eurgs: An alien race from the planet Kroz, via anticonvergent evolution became the antipode of Grues

*Giraffes: They're mammals with antenna for Pete's sake! You can't tell me that could've originated anywhere near Earth.

*Marmalade: No-on is quite sure why this substance/life form tastes sooo good, it must be an evil plot!

*Admins: Aliens that brought roaches to earth, infecting the Admins of this planet.

*Cat Girls: Female humanoids with cat-like features, these aliens are highly prised

~Reptoid

*Reptiloids: The freaky tea-drinking lizard-men you didn't see mugging-it for the camera in Invaders From Mars. Frequently appearing on commercials for Geico auto insurance.

*Vogons: Cuddly creatures from the planet Vogsphere.

*Scaaran: Large reptilian humanoids who, like Peacekeepers, feel an overwhelming need to torture John Crichton, the only human in the galaxy they've even ever heard of.

~Birdy

*Sentient Intergalactic Penguins: Giant, Superintelligent penguins from the planet XZ7-543532465-346ASDF000037 B in the outer fringes of the Andromeda galaxy, some 23.7 trillion km from Earth.

*Chickens: Superior aliens from the inner planet (Gars) of the Kentucky-Fried Star Solar System, who came to enlighten humanity. Not to be confused with Earth Chicken, the food.

~Bugs

*Zerg: ZERG RUSH KEKEKEKEKEKEKEKEKE!

*Irkens: Short, green, psycotic aliens obsessed with galactic domination and snacks. Irkens are mathematically proven to be totally awesome.

~Others

*Martians: Megalomanical invaders of Earth, come in two types: Dals and Thals.

*Zekklomians: Slightly short bluish aliens with srange crown-like "growths" on their heads.*Bread legs: Giant pairs of legs made from bread.

~Planty-things

*Pickle Aliens: These Pickles seem to hate vegetables, ironically.

*Venus Fly Traps: There's nothing to be explained.

*Bushes: Semi-mobile carnivorous alien shrubberies.

~"Normal" Odd Stuff (if Odd Stuff can be Normal)

*Weird, blobby things: Cough up some phlegm into your hands. This looks like the type of alien classified as a "weird, blobby thing".*Zorgaarb: Large, multi-limbed creatures from the planet *Zormatron, often seen drinking beer.

~From the Planet of the Aliens (cf. Alien vs Predator)

*Xenomorphs aka Aliens: Xenomorph, They are an evolved type of grue, and act just like them except they lay their ####### eggs in your body. Also, they have acid blood, so try not to shoot them that often.

*Yautja aka Predators: Bug-men with genetic dread-locks that turn invisible and beat the #### out of Xenomorphs. And Humans. Pretty much any sorry sap that gets in their way. Not to be confused with Unicorns.

~ Hybrids

*UNMED: Standing for "Ultraterrestrial Nordics of the Mediterranean,.

*In Flames: A race of humanoid aliens, famous for their abductions. Their name is said to be from a strange dialect of the Alien language, meaning "In Flames". The actual Hybrid race, the Jester

Answer 11

The exact number is unknown.  There are at least three extraterrestrial and inter-dimensional creatures that visit Earth regularly.

- The Zeta Reticulis (The Greys)

- The Pleiadians

- The Reptilians

They come here for different reason, in which we know.  The Greys have been coming here for a very long time, they are trying to save their dying race which about a thousand year from coming to a evolutionary dead end.

The Pleiadians come here for spiritual reasons, they are kind of like Muslims or Christians, they want to share their eco-Religion with everyone, which is why the choose some, and avoid others.

The Reptilians are also here on a scientific mission, they are NOT here to take over, they could have done so in an instant, but dropping  large meteorites on several large cities.  They are studying us because they have been interested in human cultures and why mammals (humans) evolved and not reptiles.

Answer 12

hundreds

Answer 13

Exactly zero.

Answer 14

they dont need to, earth is a reality show for them.

Answer 15

Indeed the Fermi paradox!

Given the size of the universe we should be awash with aliens. SETI has discovered no evidence of any.

One of three things as I see it:

1. they don't exist

2. they existed but all destroyed their own civilizations before becoming a type 3 civilization

3. we cannot detect them yet.

answer to your question is 0