Aliens may exist on earth. There is historical events, evidences, some mathematical proofs .

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Nabili Sobha Islam
Do Aliens Really Exist?

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Outline
 Introduction toAlien
 Earlier History
 UFO and Aliens
 Historical Events
 Area 51
 Suspicious Activities
 SETI Search
 NASA’sTerrestrial Planet Finder
 Arecibo message
 The DREAK equation
 Conclusion

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Dictionary definition:
Alien means belonging to a different planet.
In Science fiction, an alien is a creature from
outer space.
“I believe alien life is quite common in the
universe” – Stephen Hawkings
“Aliens have contacted humans several
times”
- Edgar Mitchell
ALIENS

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Aliens might:
 Look and behave like us
 Have evolved in competing
for resources
 Be artificially intelligent
How they can be?

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Or Like This

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They can be our friend

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or enemy

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Earlier History
There are examples of aliens in ancient art that depict that
UFOs were around in those days.

9. UFO and Aliens
It’s any apparent anomaly in the sky
that is not identifiable as a known
object or phenomenon.
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Historical Events
In 1947,businessman Kenneth
Arnold claimed to see a group
of nine high-speed objects
while flying his small plane.

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Historical Events
Purto, Rice, 1988

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The Rosswell Incident
In 1947 a flying object was found in Rosswell.

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What is Area 51?
 AREA 51 is a secret military base
 Its existence is denied by
government agencies
 Located in the southern portion of
Nevada in USA
 Also known by name Groom Lake

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Security around AREA 51

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UFO at AREA 51
In 1947, an alien aircraft was reported to have crashed somewhere near the New
Mexican Desert. Residents claim to have discovered the scene, witnessing dead
and injured alien beings.

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Suspicious Activities
Airplane passenger
'snaps UFO' on ground
near mysterious Area 51
military base
By JONAUSTIN
PUBLISHED: Tue, Nov 24, 2015
The picture of a "UFO"
GOVERNMENT CHIEF'S
DEATH BED
CONFESSION: 'I was
shown inside alien UFO at
Area 51'
By JONAUSTIN
PUBLISHED: Sun, Jul 17, 2016 |
Paul Hellyer and the no-entry
signs at Area 51

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ALIENS at AREA 51
It is supposed that scientist have been running tests and operations on aliens at AREA 51

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Meeting with ALIENS!!!
 Bob lazar a physicist at area 51 had
contact with Aliens.
 He had claimed to have work on reverse
engineering extraterrestrial technology.
(Omni Magazine Article-
1980)

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▰The SETI Institute uses radio and
optical telescopes to search for signals
that might be emitted by
technologically advanced life.
▰The Allen Telescope Array is being
developed at Hat Creek, CA to greatly
expand the SETI search
Parkes Radio
telescope
Parkes Radio
telescope
The SETI Search

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▰In 1977,Jerry Ehaman witnessed of a stronge
signal received by the telescope.
WOW
It’s a WOW!! signal
The SETI Search

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NASA proposed a planet
finder called NASA’s
Terrestrial Planet Finder
Artist Conception of NASA’s
Terrestrial Planet Finder (TPF) spacecraft
Terrestrial Planet Finder -
Infrared interferometer concept
Does life exist on an extra-solar planet? How can we find it?
NASA’s Terrestrial Planet Finder

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Arecibo Message
The Arecibo message is a 1974 interstellar radio message carrying basic
information about humanity
November 16, 1974- near Puerto Rico the encoded message was broadcasted
signals up to 20 terawatts
Sent to globular star cluster M13 in the hope of extraterrestrial intelligence
Roughly 25,000 light years away
The message contained 1679 pulses of code

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Why 1679 Digits?
Mathematics!
23 x 73 = 1679
23 & 73 are both
prime numbers,
their product is
unique to only their
combination.
Thus, when
converting to a
matrix grid,
there is only one
single way to
arrange them
Fig: Binary code

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Specific Arrangement
Fig: Binary code Fig : original 1974 message
SATI message in matrix grid

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Their Response
In 2000 the
following crop
circle appeared in
Hampshire UK.
The message is almost
identical to the binary
interpretation of the
message SATI sent 25 years
before.
And yet, things are
changed..
Fig: change in core formation(photo-lucy prigle)

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The DRAKE Equation
In this equation, N is the number of detectable TECHNOLOGICAL civilizations in our galaxy.
R is the rate of star formation in the galaxy
fp is the fraction of stars that form planets
ne is the number of planets hospitable to life (i.e., Earth-like planets)
fl is the fraction of these planets on which life actually emerges
fi is the fraction of these planets on which intelligent life arises
fc is the fraction of these planets with intelligent beings capable of interstellar communication
L is the length of time such a civilization remains detectable

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The value of N = 4590 (central limit theorem)
- Astrobiology magazine (Nov 30, 2012)
The DRAKE Equation

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Conclusion
Do Aliens really exist?

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30. Reference
▰http://ufos.about.com/od/ufohistory/a/alienlook.htm
▰http://www.esolibris.com/articles/alternative_history/ancient_ge
netic_engineering.php
▰http://www.crystalinks.com/ancientastronauts.html
▰http://www.alienswerehere.com/AncientAlienEvidence.html
▰http://www.world-mysteries.com/aa.htm

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