Aliens are any living creatures that are not originally from Earth. They could be anything from simple bacteria to intelligent life; however, there was no concrete evidence to support life outside of our planet as of now. Scientists had allegedly found in an asteroid what could be Martian bacteria.
Extraterrestrial life is life that does not originate from Earth. It is also called alien life, or, if it is a sentient and/or relatively complex individual, an "extraterrestrial" or "alien" (or, to avoid confusion with the legal sense of "alien", a "space alien"). These as-yet-hypothetical life forms range from simple bacteria-like organisms to beings with civilizations far more advanced than humanity. Although many scientists expect extraterrestrial life to exist, so far no unambiguous evidence for its existence exists.
The science of extraterrestrial life is known as exobiology. The science of astrobiology also considers life on Earth as well, and in the broader astronomical context. Meteorites that have fallen to Earth have sometimes been examined for signs of microscopic extraterrestrial life. In 2015, "remains of biotic life" were found in 4.1 billion-year-old rocks in Western Australia
Aliens in Cryptozoology
Many people believe that cryptids are in fact aliens, as an explanation for why they are so hard to find.
- Main article: Atmospheric Jellyfish
Atmospheric Jellyfish are flying jellyfish that have been sighted floating in the atmosphere. It is mostly known because of its appearance in The Secret Saturdays. According to British scientist, Dr Maggie Alderin-Pocock, the aliens likely exist; the aliens are real, they are "huge jellyfish" that float around, so this may be a hovering hydrozoa. The Atmospheric Jellyfish are a type of UFO as well.
- Main article: UFO
In cryptozoology, the term UFO–or unidentified flying object–refers to a suspected alien spacecraft, although its definition encompasses any unexplained aerial phenomena. UFO sightings have been reported throughout recorded history and in various parts of the world. They became a major subject of interest–and the inspiration behind numerous films and books–following the development of rocketry after World War II with Foo Fighters Appearing During WWII.
- Main article: Grey Aliens
Grey Aliens, also known as Greys and Grays are said to be dark grey-skinned humanoid aliens that have lack of external human organs such as noses, ears or sex organs. Their bodies are usually depicted as being long and lacking in muscle. Their legs are shorter from what one would see in a human. Their limbs are often depicted as different from a human their humerus and thighs are the same lengths as their forearms and shins.
Grays are said to have oddly large heads compared to their bodies. They are also said to have completely no hair anywhere on the body, including the facial hair or any other type of hair, and no outer ears or noses, but only small openings for nostrils. They are said to have very large black eyes with no pupil. Also reports and abductions claim they are small, but there are exceptions as some claim seeing large ones the size of a human or larger.
Grey Alien sightings make up over 40% of all reported alien encounters.
- Main article: Indrid Cold
Indrid Cold, commonly known as The Grinning Man, is a purported humanoid entity. His name comes from his tendency to smile at those who encounter him. And it is also said that he still visits West Virginia today.
- Main article: Alien Encounter Timeline
In cryptozoology, the term UFO–or unidentified flying object–refers to a suspected alien spacecraft, although its definition encompasses any unexplained aerial phenomena. UFO sightings have been reported throughout recorded history and in various parts of the world, raising questions about life on other planets and whether extraterrestrials have visited Earth. They became a major subject of interest–and the inspiration behind numerous films and books–following the development of rocketry after World War II.
|6000-5000 BC||Cave Paintings of Aliens are painted.|
|1,500 BC||Pharaoh Thutmose III In Egypt, the Pharaoh Thutmose III sees silent, foul-smelling circles of fire and flying discs in the sky.|
|800 BC||Peru Aerial landing strips are built in the Peruvian Andes.|
|329 BC||Alexander the Great, via his historians: told of 2 strange objects in the sky that dove repeatedly at his army.|
|99 BC||Prodigia of Julius Obsequens of Rome sighted a round or circular shield, took its path in the sky from west to east."|
To see full list, see List of Alien Encounters.