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DO Aliens Really Exist?
Aliens may exist based on several factors: - UFO sightings and reports of alien encounters at places like Area 51 suggest extraterrestrial visitation. - The SETI Institute continues searching for signals from intelligent civilizations, having detected an unexplained "WOW signal" in 1977. - The Drake Equation estimates there may be thousands of communicative alien civilizations in our galaxy based on factors like planet habitability. - While evidence is inconclusive, the possibility of alien life remains an open scientific question according to many experts.
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DO Aliens Really Exist?
- 1. 1 Nabili Sobha Islam DoAliens Really Exist?
- 2. 2 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
- 3. 3 Dictionary definition: Alien meansbelonging 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
- 4. 4 Aliens might: Lookand behave like us Have evolved in competing for resources Be artificially intelligent How they can be?
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- 6. 6 They can beour friend
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- 8. 10 Earlier History There areexamples of aliens in ancient art that depict that UFOs were around in those days.
- 9. UFO and Aliens It’sany apparent anomaly in the sky that is not identifiable as a known object or phenomenon. 9
- 10. 12 Historical Events In 1947,businessmanKenneth Arnold claimed to see a group of nine high-speed objects while flying his small plane.
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- 12. 14 The Rosswell Incident In1947 a flying object was found in Rosswell.
- 13. 13 What is Area51? 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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- 15. 15 UFO at AREA51 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.
- 16. 16 Suspicious Activities Airplane passenger 'snapsUFO' 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
- 17. 17 ALIENS at AREA51 It is supposed that scientist have been running tests and operations on aliens at AREA 51
- 18. 18 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)
- 19. 19 ▰The SETI Instituteuses 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
- 20. 20 ▰In 1977,Jerry Ehamanwitnessed of a stronge signal received by the telescope. WOW It’s a WOW!! signal The SETI Search
- 21. 21 NASA proposed aplanet 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
- 22. 22 Arecibo Message The Arecibomessage 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
- 23. 23 Why 1679 Digits? Mathematics! 23x 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
- 24. 24 Specific Arrangement Fig: Binarycode Fig : original 1974 message SATI message in matrix grid
- 25. 25 Their Response In 2000the 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)
- 26. 26 The DRAKE Equation Inthis 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
- 27. 27 The value ofN = 4590 (central limit theorem) - Astrobiology magazine (Nov 30, 2012) The DRAKE Equation
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