So Where Are All Those ETs?


Fermi’s Paradox is a theory named after Italian physicist Enrico Fermi (1901-1954) who, during lunch with a fellow scientist, posed a question kind of like this, “Where the heck are the aliens if they are supposed to exist?” The premise of his theory goes something like this:

  • Billions of stars similar to our Sun exist with many of them billions of years older than our own planet.
  • It is highly probable that some of these stars would be orbited by Earth-like planets with conditions that could lead to the development of intelligent life.
  • If intelligent life developed on these older “Earths” their respective civilizations might have developed interstellar travel and have already begun investigating Earth.

Combine all these facts and you come up with the conclusion that Earth should have already been visited by ETs. So, like Fermi said, “Where is everybody?” Despite mankind’s best efforts Fermi could not find any credible evidence of alien visitation. The conclusion then must become that the existence of intelligent life is:

  • Extremely rare, or…
  • Alien intelligent civilizations have not contacted Earth.

In 1961 a scientist by the name of Frank Drake took Fermi’s 1950 theory and applied a mathematical formula to the probabilities. It is called the “Drake Equation”. The formula is expressed as:

N = R* · fp  · ne · fl  · fi  · fc · L

The variables are defined as follows:

N = The number of civilizations in The Milky Way Galaxy whose electromagnetic emissions are detectable.

R* = The rate of formation of stars suitable for the development of intelligent life.

fp = The fraction of those stars with planetary systems.

ne = The number of planets, per solar system, with an environment suitable for life.

fl = The fraction of suitable planets on which life actually appears.

fi = The fraction of life bearing planets on which intelligent life emerges.

fc = The fraction of civilizations that develop a technology that releases detectable signs of their existence into space.

L = The length of time such civilizations release detectable signals into space.

But what does the formula mean to scientists? Well, that depends on who you talk to. Some scientists translate the results to be wildly optimistic that there is, indeed, intelligent life out there. Others feel quite the opposite. When Frank Drake met with Carl Sagan to speculate on the calculations, they estimated the existence of 1,000 (on the low end) to 100 million (on the high end) possible intelligent civilizations in our Milky Way galaxy. To counter their claims, scientists Frank Tipler and John D. Barrow put forth that the average number of intelligent life civilizations in our galaxy would be much less than one. Seeing as how human civilization exists, that would consequently, then, rule out the possibility of any other intelligent civilization existing at the same time.

The Search For Extraterrestrial Intelligence Institute (SETI) sees the Fermi’s paradox and accepts the reality that either interpretation of the possibility of the existence of intelligence life has a chance of being true. Thus, they continue their efforts, erring on the side of optimism. And the gringa likes that. Why not hold out hope? Why not be curious? And why not exercise such curiosity with a healthy dose of skepticism to balance out the equation and prevent a full-scale pre-disposition to crazy alien conspiracy theory by maintaining strict scientific standards?

SETI continues exploration and research as they search for others out there in the galaxy. They believe in the possibility that if a suitable environment was allowed enough time, that it is possible for intelligent life to develop. By using all sorts of science and technology (satellite arrays, chemistry, optical telescopes, and sophisticated radio signaling devices) SETI not only searches for signals from other civilizations but reaches out with messages of our own to anyone who may be listening. And with their Education and Public Outreach program (EPO), humans of all ages and walks of life can be a part of their endeavor. For educators there is nothing more exciting than to introduce to a classroom of elementary and middle school students SETI’s “Life in the Universe” curriculum. So log on and order your first package today and get students engaged with a lesson plan that is certain to pique their curiosity and hopefully inspire them to be the future of our world’s STEM programs, because we need them.

Sources:

www.seti.org

www.yahoo.news

wikipedia.org

Image Credit:  bing.net

 

 

The Truth About Tabby


UFO and alien conspiracy theory buffs are going to enjoy this post by the gringa, or not. I guess it depends on if you enjoy a healthy dose of conspiracy debunking or truth. You see, dear readers, there has been a bit of hubbub about an interesting space object that is orbiting a nearby star and was detected by the Kepler telescope late last year.

The SETI Institute (Search For Extraterrestrial Intelligence) calls KIC 8462852 “mysterious”. NASA believes the mystery is resolved with the theory that the strange signals are the result of cosmic dust, probably from multiple impacts of a comet swarm, and causes the star’s light to flicker erratically. Vanderbilt University researchers, who affectionately call the star Tabby, debunk theories by those who believe it to be home of aliens who are very, very busy. The astrophysicist contributors to the respectable Astrophysical Journal agree with Vanderbilt’s point of view while at the same time agreeing with theories from other scientists who propose an extraterrestrial origin theory. So, who’s got it right? Who’s got it wrong? Just what the heck is the truth about Tabby?

Who Is Tabby

Tabby is officially designated star KIC 8462852 and shines brighter than our own Sun about 1400 light years from Earth in the Cygnus constellation. It is a subject of study by NASA’s Kepler space telescope which reveals that from time to time it dims about twenty percent in brightness.

SETI’s Conclusion

The cause of the dimming light could possibly be because of material or objects orbiting the star. SETI researchers believe they have evidence to determine that these objects are not planets. SETI considers the possibility that Tabby could be home to a technologically sophisticated society that has constructed a swarm of solar panels that orbit the star which would account for the light fluctuations.

SETI uses its own Allen Telescope Array to study radio signals that originate from that part of outer space. They attest that these radio signals are of artificial origin, calling them “non-natural”. They search for narrow-band signals and broadband that might possibly be produced by a large and powerful spacecraft. They also search for evidence of laser pulses. SETI’s Panamanian partner, Boquete Optical SETI Observatory, performs the laser pulse research.

Research such as this takes a long time so the gringa will have to practice patience for SETI to conclude their studies and publish their final results. They admit that, historically, cases like this usually result in finding a natural cause for the anomalies but they still must investigate the possibility of it originating from extraterrestrial intelligence. That is, after all, their mission.

NASA’s Conclusion

During four years of observation, the Kepler mission recorded strange happenings in 2011 and 2013 when interesting and dramatic light fluctuations occurred. To help determine what happened, NASA also trained the eye of the Spitzer Space Telescope in Tabby’s direction. Kepler observed the visible light. Spitzer could delve deeper into the invisible infrared light signals and patterns. In November of last year Spitzer paid off with a recording of another light fluctuation.

Although NASA’s theory is that clouds of space dust were formed from a swarm of comets that orbit the star in erratic patterns, Spitzer did not discover evidence to support this theory. This caused NASA to switch to a cold comet theory. One lead comet would be followed by a swarm of smaller comets. If this is true, even if the comets were already out of the telescope’s view as they traveled around Tabby, they should still leave behind a detectable infrared signature. However, this was not the case.

Researchers admit that more observations need to be recorded to determine just exactly what is going on. NASA admits that Tabby is strange, indeed. However, they believe that a natural cause is more likely than “little green men”.

Vanderbilt University’s Conclusion

Vanderbilt studies focused on the 100 day period when the most significant light fluctuations occurred. The manner in which they occurred suggested that a large number of “irregularly shaped objects” passed in front of the star causing its light to be blocked temporarily. Working off a report from an astronomer at Louisiana State University who concluded that the star had diminished in brightness by 20 percent over the past century, Vanderbilt finds a natural cause unlikely as an explanation for this. This has become fodder for the theory that a megastructure has been constructed that is absorbing the star’s energy, the solar panel array theory. This is a theory that was reviewed, accepted and published by the Astrophysical Journal.

Vanderbilt, however, did not stop there. They soldiered on. Partnering with amateur German astronomer, Michael Hippke and NASA scientist Daniel Angerhausen, the team began comparing the 20 percent drop in intensity to other stars. They discovered that this is not an unusual phenomenon. In fact, it’s not a star phenomenon at all. It is simply the result of technological changes and advances of human manufactured instrumentation for observance.

The Gringa’s Conclusion

These are all interesting theories but not yet solid answers. So, the gringa will wait and see if, ten or twenty years down the road, we all find out what the actual, final answer is:

  • Comet Swarms

or

  • Extraterrestrial Solar Array

Until then, Tabby will be the most interesting and mysterious star in our night sky.

Sources:

www.seti.org

www.nasa.gov

vanderbilt.edu

Image Credit:  www.centauri-dreams.org

 

Jealousy, Vandalism, And Pharaoh’s Helicopter


So, did Egyptian Pharaoh Seti I have a helicopter? What about a submarine? Did he have one of those, too? Did he get them as gifts from visiting extra-terrestrials? Could Seti I have been an extra-terrestrial himself? Was he stranded on Earth, crash landing his spaceship that was crippled but managed to salvage some really cool toys? No. Seti I did not have a helicopter or submarine. What he did have was a jealous son who vandalized his tomb.

Pharaoh’s had big egos. Their monuments alone are a testament to that fact. Often, one pharaoh would be so nasty and jealous that he would attempt to erase the historical footprint left behind of a previous regent, like how Thutmosis III erased Queen Hatsheput from the annals of Egyptian history and destroyed her statues and monuments.

You can see more handiwork of one pharaoh stealing another’s glory in the temple at Karnak.

ramesses I cartouche in karnak temple

So the naughty grandson vandalized the Karnak Temple, altering the carving of the seated man to change the signature from granddad, Ramesses I, to himself, Ramesses II. Thus, #2 “steals” credit from granddad and gets all the glory for the construction of the Karnak Temple. And this wasn’t the only monument Ramesses II stole from granddad. Since the naughty boy’s dad is Seti I, and the cheeky lad was rogue enough to steal glory from granddad, does the gringa believe he will stop there or also try to get credit for what dear ol’ dad did as well? What do you think, dear reader?

And that brings us to the next piece of evidence ufologists and ancient alien theorists use to prove extra-terrestrial contact or hybridization of extra-terrestrials with ancient Egyptians… the Seti I cartouche at the Temple of Seti I at Abydos:

4

Yes, there are carved images that distinctly look like a helicopter, submarine and spaceship. What the heck? How in the world did something like THAT get carved in a temple built in 1300BC?!!!  It seems that Ramesses II “photoshopped” ancient Egyptian style.

Well, let’s take a peek at the controversial cartouche of Seti I from the perspective of hieroglypic experts who see through the clever photoshop of Ramesses II and describe it as a Ramesses II cartouche superimposed over a Seti I cartouche:

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Now, the gringa digs into her little bag of tricks, children’s books, to evaluate the hieroglyphics. I’m no expert so a children’s book is good enough for me.  According to my children’s hieroglyphic alphabet and numbers, I can identify some of the symbols:

Examining the underlying Seti I cartouche it’s easy to see the symbol for the number 3 used 3 times, and the symbols for the phonetic sounds “T”, “R”:

hiero number - Copyheiro alpha - Copyheiro alpha - Copy (2)

Examining the overlaying Ramesses II cartouche the symbols can be seen for the phonetic sounds “C” or “X” (depending on perspective), “F” or “V”, and what is either the number 100 or phonetic sounds for “U” or “W”.

heiro alpha - Copy (3)heiro alpha - Copy (4)heiro alpha - Copy (5)heiro alpha - Copy (6)hiero number - Copy (2)heiro alpha - Copy (8)heiro alpha - Copy (7)

Now, the gringa admits that she is no qualified Egyptian heiroglyphics expert. However, I believe that, considering Ramesses II’s reputation as a monument graffiti artist, and the simplistic bit of heiroglyphic study the gringa’s simple mind is capable of, I’m leaning toward a cartouche defacement theory. The gringa thinks that it is more plausible that Ramesses II superimposed his own signature over his father’s so he could claim credit for the construction of the Temple at Abydos than that an ancient Egyptian pharaoh had an enormous limestone garage housing a spaceship and helicopter and also kept a submarine docked in the Nile.

Sources & Image Credit:

http://www.ducksters.com

http://www.raincool.blogspot.com

http://www.hallofthegods.org

http://www.geocities.com

http://www.ufocom.eu

wikipedia.org

 

 

Breaker One-Nine, SOS, FRB’s & ETs


Dot dot dot-dash dash dash-dot dot dot. Dear readers, do you know what that is? It is SOS in Morse Code. All radio operators know this. It is an understood code that crosses all language barriers. The gringa, fascinated with all things space, then has to ask, does this include extra-terrestrials? Well, who knows?!

Now, the SETI Institute (Search for Extra-Terrestrial Intelligent Life) doesn’t really make it a practice to emit signals in their search for ETs, rather, they listen to outer space “noise”. NASA’s search for extra-terrestrial life isn’t so much for little green men to have a conversation with, but, rather, the origins of life such as amino acids, ribonucleotides (RNA) and certain gases such as oxygen, methane, ammonia, hydrogen, and, of course, water.

However, Earthlings have been inadvertently sending out all sorts of signals into space for over five decades. As technological devices fill the Earth, transmission signals fill the heavens: radio broadcasts, television signals, radar blips and bleeps, etc. So, why do we not purposely send a message designed to create a favorable first impression rather than let all this mish-mash represent humankind? Does NASA and SETI believe that no one exists, thus no one is listening or do they believe there may be inherent danger in seeking out contact? Evidently the reason is because there is no consensus, yet, within the scientific community. The professionals are ARGUING. Hmph.

Douglas Vakoch, a researcher with SETI, thinks that it may be time to have an international discussion on the subject and let the public’s opinion on the matter be heard. He is on the pro-sending signals side of the argument. He proposes transmitting radio signals to hundreds of stars within eighty-two light years of our home planet. This can be accomplished with the radio telescope at Arecibo Observatory in Puerto Rico.

Renowned physicist, Stephen Hawking, on the other hand, thinks this is a bad idea. By sending out so many signals to every Tom, Dick and Harry alien out there, we could communicate with the good, the bad and the ugly. He believes we should be much more cautious in our approach.

So, it seems that, although there is no consensus within the scientific community on whether or not we should initiate communication, there is a consensus that somewhere out there is intelligent life that would not only receive the signals, but would be capable of responding, perhaps in person. The gringa says, “Hmmm.”

Now, the telescope at Arecibo has already sent a space message back in 1974. Consisting of an intricate code, it was transmitted to a cluster of stars 25,000 light years away.

The Crimeans sent out four messages to the cosmos from 1999 until 2008. They were transmitted from the Yevpatoria RT-70 radio telescope at Crimea’s Center for Deep Space Communications. Their ET messages were entitled: “Cosmic Call”, “Teen Age Message”, “Cosmic Call 2”, and “A Message From Earth”. The messages were made up of binary code, repeating signals, musical compositions, photographs, whale songs, etc.

Scientists believed that it is important to purposely beam thoughtful messages into deep space rather than let ETs believe all Earthlings are like the Kardashians, or the Zodiac killer, or Archie Bunker. Although Earthlings have been flooding outer space with signals since the beginning of the television era, most of our daily technologies do not have signals that are sufficiently strong enough to be picked up by our nearest living ET neighbors’ light years away. Although, if they are advanced enough, they have probably detected something by now.

So, if SETI and the Crimeans have already sent out some transmissions, the gringa then wonders, “What’s the big deal about sending more?” And, if our own daily barrage of digital signals and radio waves have the possibility of already being detected, what’s the point of “laying low”? If an ET civilization is super advanced to the point they could easily dominate us, yet they haven’t shown up and taken over, why be so worried? It seems they could care less.

The gringa thinks the real reason why the scientists can’t stop arguing and just get to the business at hand is an age old reason. Power struggle. Tsk, tsk. How disappointing. The gringa believed that surely, of all human beings, scientists were above such nonsense. As scientists consider the possibility of the most ground-breaking and historical event EVER playing out, they eye one another suspiciously and wonder just who is going to get the credit. Yes. Exactly who gets to devise the message, approve it and send it as the representative of the entire Earth?!

So, although there are researchers who want to open up the subject to public debate, that also opens it up to the general host of problems that goes along with human nature. Venturing into the area of communicating with an alien race would mean the establishment of protocols. Who gets to decide who we Earthlings talk to and what we talk about?

Although SETI wants to actively transmit in hopes of communicating with extra-terrestrials, the official policy of the institute is that the final decision belongs to the people of Earth. Such a decision affects all humans. It could be the single-most life affecting decision for mankind. Therefore, it should be left in the hands of all the people and not just a few “experts”.

Many other leaders in the space exploration community are in agreement, such as former Senior Scientist for Astrobiology in NASA’s planetary protection office, John Rummel and SpaceX founder, Elon Musk. Pioneering American astronomer, Geoff Marcy, who has discovered many “extrasolar” planets, believes it is important that every culture, even deep jungle indigenous peoples, upon Earth have the opportunity to have their voices heard in such a decision that will affect every person worldwide.

The discussion on this issue will probably continue to heat up because, recently, some interesting radio signals have been detected by astronomers who have been left scratching their heads and wondering if they could, perhaps, be a signal from intelligent beings, seeing that, like one of our own repeated signal transmissions, this signal also repeated itself.

If a repeating signal has been detected in deep space, could it have other origins than intelligent beings purposely transmitting? Canadian scientist Paul Scholz finds the mystery rather exciting and believes this to be an important discovery and wants to know if the signals originated with living, breathing ETs or if a star just went “kaplooie” and it’s just a “coincidence” that it created a shockwave noise that mimics a man-made (or little green man-made) artificial, repeating signal.

Until the signals began repeating, scientists theorized the rapid bursts of radio signals resulted from a star that went supernova and exploded or, perhaps, a neutron star collapsing into a black hole. But, now that the signals are identical and repeating, the same scientists don’t quite know what to think.

In addition to a repeating pattern, there are other singular differences that set the signals apart from other space “noise”. When studied further, the signals are “brighter” and in a different “spot” on the “spectrum” of other fast radio burst signals (FRBs). These details are all well and good, but all the gringa wants to know is, “Are we alone or not?”

The closest I can get to a straight answer is what a Cornell University astronomy professor has to say. According to Professor James Cordes, whatever charge is powering the signal, it is powerful enough to repeat the signal cycle within minutes. The energy packed behind the transmission must be impressive because they are extraordinarily bright, thus enabling us to see them from very, very, very, very, far away. And, the power source must also be incredibly secure and amazingly strong and durable because it is not destroyed by the transmission of an exploding-star-scale blast and is capable of repeating the exploding-star-scale blast.

To put all of this in a nutshell, five fast radio burst signals were captured by the Parkes radio telescope in New South Wales, Australia. Rather than just be a single burst of energy, these are double bursts, two bursts separated by 2.4 milliseconds, consistently. They repeated five times. The origins of the signals could be as far away as several billion light years beyond the Milky Way Galaxy, our home turf in the cosmos.

The gringa has no answer and remains intrigued. And my vote is that we send our own signals.

 

 

Sources: http://www.ewao.com, http://www.seti.org, http://www.nasa.gov

Image Source:  www.dailymail.co.uk

 

 

 

 

How Bad Is 82%?


Did the gringa’s dear readers hear the news? The Earth’s report card has arrived and, well, it doesn’t seem to be all that bad. It’s a “B”, after all, 82%. That’s the grade the University of Washington’s Virtual Planetary Laboratory gave our lovely planet. What, exactly, does that mean?

By using what the laboratory calls the “habitability index”, our planet was graded on the likelihood of supporting life. It rated an 82%. The same guidelines used to determine the habitability of life on other exoplanets throughout the vast cosmos was applied to Earth and she got a “B”. Among these guidelines are factors like: atmospheric pressure, terrain, existence of water, etc.

The funny thing is that if we didn’t live here already, and sent out a probe to conduct an analysis of our planet according to this habitability index, we wouldn’t think the planet was inhabited or capable of sustaining life if we wanted to pay it a visit with boots on the ground. We would think it was too hot to support life. What? Yes. Our scientists would think it too close to our host star, the Sun. The gringa says, “That’s crazy!” I then have to wonder how many other planets out there in space have been deemed “uninhabitable” but, in actuality, could very well support life and possible may be doing just that?!

The researchers at SETI (Search for Extraterrestrial Intelligence) seem to be thinking along the same lines as the gringa. Now, SETI typically keeps a fairly low profile. However, with the discovery of exoplanets, there is renewed vigor in the organization’s work.

When work first began in the 1980s, SETI was not a group of ufologists looking for little green men. These were serious scientists who were actually skeptical that intelligent life existed in the universe other than here on Earth. And then the discovery of exoplanets was made. These cosmic bodies orbit stars just like Earth and our neighbors within our own Solar System.

In addition to the discovery of exoplanets, extremophiles were also discovered. These are living organisms that survive within an extreme ecosystem, such as bacterial ecosystems around a 700 degree Fahrenheit hydrothermal vent, surviving without sunlight and under extreme oceanic pressure.  That means that life in the most basic form that evolved into all that populates our planet today can exist in outer space. In fact, it’s highly likely that it does, somewhere, we just have to find it.

You see, about 2,000 exoplanets have been discovered and that is just scratching the surface of an infinite universe. Mankind’s limited exploration abilities have yet to uncover what is likely to be hundreds of thousands, possibly millions and billions, of exoplanets. That dramatically increases the chances that somewhere out there is an exoplanet supporting life.

Consider that many of these exoplanets are much older than Earth. That means they have had plenty of time for bacteria to evolve into intelligent beings. Now, more than ever, is the gringa excited about the future of space exploration. The nearest exoplanet with a score high enough on the habitability index to consider a likely place to start in such a search is over 1,400 light years away. The gringa would rather go there than Mars.

 

Photo Source:  www.rawscience.tv.com