Aliens are supposedly creatures
from outer space, from other planets. There have been many sightings of alien
spacecrafts in many places. The most famous sighting place is Area 51 is Roswell,
New Mexico. Most of the sightings were in the 1950's. There are many descriptions
of what aliens looks like. The most common one is green skin, big black eyes
with no pupils, a big head, and about 4 feet tall.