5 natural phenomena can not be explained

There are some phenomena that have seen or felt by many, but everyone is unable to provide a logical explanation, I triedsome of the theories of interpretation

1-  Unidentified flying object

A term originally coined by the military, an unidentified flying object (usually abbreviated to UFO or U.F.O.) is an unusual apparent anomaly in the sky that is not readily identifiable to the observer as any known object. While a small percentage remain unexplained, the majority of UFO sightings are often later identified as any number of various natural phenomenon or man-made objects.

2 -

Believed that a man has a body like a monkey and a huge covered by thick hair, and lives somewhere in the

Himalayas between Nepal, India and Tibet, has narrated many they saw, but none

Of them did not know what it is.

3- Ghosts

Echoed by many since the historical times that ghosts do exist and that they had seen,

Despite the differences of beliefs and theories that explain the appearance of what is

Limited to scientific and superstition or religious belief, it is a phenomena of non-explanation.

4- is the experience of feeling sure that one has already witnessed or experienced a current situation, even though the exact circumstances of the prior encounter are uncertain and were perhaps imagined. The term was coined by a French psychic researcher, Émile Boirac (1851–1917) in his book L'Avenir des sciences psychiques ("The Future of Psychic Sciences"), which expanded upon an essay he wrote while an undergraduate. The experience of déjà vu is usually accompanied by a compelling sense of familiarity, and also a sense of "eeriness", "strangeness", "weirdness", or what Sigmund Freud calls "the uncanny". The "previous" experience is most frequently attributed to a dream, although in some cases there is a firm sense that the experience has genuinely happened in the past

5- Noise in the Taos city 

A town in the state of New Mexico, U.S. residents hear noise
Coming from the desert adjacent to the city but that the source of the noise is still

Unknown until now.