Could Gliesians be Watching Baywatch?

October 3, 2010 4 Comments

[Note: Click here for a more thorough treament of the viability of SETI and the (high) likelihood of extraterrestrial intelligence]

Gliese 581g is an earthlike planet orbiting the star Gliese 581, 20.3 light years away from us.  Discovered just last week by astronomer Steven Vogt, he announced that the odds of life on this exosolar planet are 100%.  That’s a pretty bold statement, even for a planet thought to be in a habitable zone of a star a little smaller and cooler than our sun.  Most astronomers are attributing his statement to being a little overexcited with his discovery.  But it got me wondering – if there were technologically advanced lifeforms on this planet, is it possible that they would be able to receive our radio or TV transmissions?  And, remember that when Gliese 581g might be receiving from us today is what we broadcast 20.3 years ago, such as episodes of Baywatch.  Alternatively, can we hear them, as SETI has been attempting to do for the past 30 or so years?

As it turns out, there isn’t much to worry about, unless we decide to send a very high-powered narrow directional message to a planet that just happens to be at the perfect level of technology which also just happens to have outpaced their social evolution dramatically.  Not likely there either, for reasons that I will discuss in an upcoming post (sorry, Stephen Hawking).

Here’s the deal.  Let’s take a typical TV broadcasting station operating 50000 watts on Channel 2.  Because radio waves attenuate proportional to the square of the distance from the transmitter, this signal will be pretty miniscule by the time it gets to the edge of our solar system.  In fact, by the time this 6 MHz wide signal at 60 MHz gets about 1.4E+11 km away, its power density will be at the same level as the corresponding power density of the cosmic microwave background (CMB) radiation in that frequency band (feel free to check my math – it’s a little rusty).  In addition, the signal will be an indecipherable mess because it will be intermixed with all of the other TV stations broadcasting on Channel 2.  So how far out exactly is 1.4E+11 km?  Turns out this is past Pluto, but barely the beginning of the Oort cloud in our own Solar system, or .015 light years.  That is .00075 of the distance to Gliese 581, across which distance the signal will be attenuated by a further factor of 1.8 million and CMB background noise will completely swamp out the signal.

So, zero chance of Gliesians kicking back and enjoying an interstellar episode of Baywatch.  And not much chance of us hearing accidental radio waves generated from their planet, even assuming they followed a similar technological evolution at the exact same time as us.  Sorry, SETI.
 radioastronomy200 baywatch200

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Your Universe is Different than Mine

March 5, 2010 1 Comment

We used to be taught that the universe was everything there is.  But, over the past few years, it is beginning to have a new meaning.  The universe is now meant to be everything that we can possibly see or experience.  Let me illustrate with a story.  Imagine our protagonist Jack happily living in his little universe.  His astronomer buddies have used their most advanced equipment to peer into the deepest depths of space and have detected things a few billion light years away in all directions.  There could be things beyond that “practical observational horizon”, but we are limited by the state of the art of equipment in the year 2010.

However, there is another horizon beyond “a” which denotes the point at which it would be impossible to see beyond, due to the speed of light.  The light from objects at that distance has been traveling toward us since the beginning of the big bang.  This is our theoretical horizon, beyond which we can never see or detect anything no matter how advanced our equipment becomes.  It should be noted, that this statement presumes that nothing travels faster than the speed of light and even if it did, we would not be able to detect it.  Despite a century of hard evidence supporting Einstein’s famous assumption regarding the limitations of the speed of light, there are a number of physicists who don’t rule out the possibility that this barrier could someday be broken.  But that’s a topic for another post.  Setting such arguments aside, there is then a “theoretical observational horizon,” also known as the Hubble Volume, which is generally accepted to be about 42 billion light years in diameter.  But that doesn’t mean there’s nothing beyond the Hubble Volume.  In fact, the inflationary theory of the big bang allows for quite a bit of the material from the big bang to exist beyond that horizon because the inflationary period was superluminal. (We were just saying…?)  But, for all practical purposes, the Hubble Volume contains all that you can ever know about.  By convention, astronomers call that “The Universe.”

By definition, a Universe depends on what is identified to be its center.  So, for example, Jill, standing on a planet 1 light year away from Jack, actually lives in a slightly different Universe.  One which has one horizon one light year further away from Jack’s in the opposite direction and another horizon one light year closer than Jack’s in the direction toward Jack.  So Jack has some stuff in his Universe that Jill doesn’t have and vice versa.

jackandjill

The choice of a light year between Jack and Jill’s positions was arbitrary.  They could be standing next to each other and still have slightly different Hubble Volumes.  In fact, when you get down to it, we all live in different Universes.

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Royal Astronomers Figure Out What Sci-Fi Writers Have Known for Years

February 25, 2010 1 Comment

Last month, Lord Martin Rees, the president of Britain’s Royal Society and “astronomer to the Queen of England”, hosted the National Science Academy’s first conference on the possibility of extraterrestrial life, which was attended by such scientific illuminaries as physicist Paul Davies, SETI founder and astrophysicist extraordinaire Frank Drake.  And the resulting sound bite of the week is “World-Leading Physicist Says ‘They Could Exist in Forms We Can’t Conceive'”?

Really?  That’s it?  That’s news?  That’s what we get from the world’s leading thinkers on cosmology?

Sorry for my tone, but it’s about time these guys got caught up with science fiction writers from 50 years ago.  Check out a 1959 movie called “Invisible Invaders.”  Or at a minimum, take Carl Sagan’s brainchild from the late 70’s, “Contact” (film treatment in 1979, book in 1985, and movie in 1997) featuring a highly advanced extraterrestrial race who can appear to us in any form they want.  I’m sure there were many other writers who considered that a civilization advanced enough to cross millions of light years of space, might be advanced enough to learn how to cloak.  I certainly pondered that idea as a kid.

No doubt, these guys are a bright bunch.  But not necessarily seeing the forest for the trees.  Take SETI, for example.

We tend to assign attributes of our own civilization and our own values to other potential civilizations.  But there is really no reason to assume that once life forms on a particular planet that it will evolve into a life form that is eager to communicate.  One could argue that the intelligence of dolphins, elephants, and humans are roughly equivalent (turn the clock back 50,000 years and look at what we assume about the behavior of each species; is there much difference?)  We don’t see dolphins building SETI dishes.  Using Drake’s own equation for counting the number of ET civilizations that we might be able to communicate with, we need to consider the duration of a civilization communicating with electromagnetic radiation in the radio spectrum.  One can make the assumption that it might be similar to ours and in the range of 50-100 years.  But this is a big assumption.  Maybe ET modulates magnetic fields, or seismic waves, maybe they got fully wired for broadband internet before discovering radio wave propagation, maybe they communicate via telepathy, or entanglement, or some form of communication that is completely unknown to us.  Expecting them to have a period of radio wave technology that just happens to overlap ours is probably quite unlikely.  When I made reasonable assumptions for the factors in the Drake Equation in my book “The Universe – Solved!“, I got the result of .08 overlapping radio wave civilizations per galaxy, making it unlikely that SETI will find anything before funding dries up.

On the other hand, modifying the Drake Equation to estimate the likelihood of ET visitation, I came to the following conclusion: If 50% of intelligent life forms can make it to Type III status, there should be thousands of migrating/colonizing/traveling species in our neighborhood.  On the other hand, would they even care about us?  When we take a walk through a field, do we attempt to communicate with the ants in an anthill?  If the field is ready to be leveled in order to make room for a housing development, do we attempt to save the ants?  No.  Why not?  Because they are so far beneath our intellect level or our perceived level of net worth, that such endeavors are simply not worth our time.  Now imagine what a Type II or III civilization might be like.  Consider how far we have progressed (some might say, regressed) as a society since the hunter/gatherer stage of human evolution 10,000 years ago.  Further, consider that we are accelerating in this progression exponentially.  So, for all practical purposes, it is impossible to even imagine where we might be in 10,000 years.  Telepathic communication, control of time and space, simultaneous access to parallel universes, full merge with AI?  Some futurists predict these things in hundreds of years, not 10,000.  Furthermore, since 100 million years represents less than 1% of the lifetime of our galaxy, it is not unrealistic to assume that Type III civilizations may be 100’s of millions of years advanced compared to our own society.  Given the foregoing discussion, it is easy to make an argument that it is highly unlikely that ETs are zipping about in our atmosphere in vehicles that appear to be no more than 50 years ahead of our technology (they supposedly crash, after all).  The only possible “True ET” explanation is that extremely advanced species either intentionally appear in a form that makes us realize that they are here (not unlike the father figure in the Carl Sagan movie “Contact”) or they don’t appear to us at all.  The above section was taken from my book and written in 2007.

Lord Martin Rees, you should have saved yourself the expense of a conference and picked up a copy of “Contact” and “The Universe – Solved!”

drakeequation185

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Entropy and Puppies, like a Hand and a Glove

December 9, 2009 1 Comment

Ah yes, the good old 2nd Law of Thermodynamics. The idea that the total disorder of a system, e.g. the universe, always increases.  Or that heat always flows from hot to cold.  It’s why coffee always gets cold, why money seems to dissipate at a casino, why time flows forward, why Murphy had a law, why cats and dogs don’t tend to clean up the house.

Ultimately, due to this rather depressing physical law, the universe will die by “heat death,” where it reaches a state of absolute zero, no more heat, no motion of particles.  Don’t worry, that’s not predicted for another 10^100 (or, a Googol) years.  But, I always wondered, is it always always the case, or can entropy decrease in certain circumstances?

Got a spare fortnight? Google “violations of the second law of thermodynamics.”  Personally, I rather like Maxwell’s idea that it is a statistical argument, not an absolute one. “Maxwell’s Demon” is that hypothetical device that funnels hot molecules in one directions and cold ones in the opposite, thereby reversing the normal flow of heat.  Could a nanotech device do that some day?  Yes, I know that there has to be energy put into the system for the device to do its work, thereby increasing the size of the system upon which the 2nd law holds.  But, even without the demon, aren’t there statistical instances of 2nd Law violation in a closed system?  Not unlike the infinitesimal probability that someone’s constituent atoms suddenly line up in such a manner that they can walk through a door (see recent blog topic), so could a system become more coherent as time moves to the future.

What about lowering temperature to the point where superconductivity occurs?  Isn’t that less random than non-superconductivity.  One might argue that the energy that it takes to become superconductive exceeds the resulting decrease in entropy.  However, I would argue that since the transition from conductive to superconductive occurs abruptly, there must be a time period, arbitrarily small, during which you would watch entropy decrease.

There are those who cite life and evolution as examples of building order out of chaos.  Sounds reasonable to me, and the arguments against the idea sound circular and defensive.  However, it all seems to net out in the end.  Take a puppy, for instance.  Evolutionary processes worked for millions of years to create the domestic dog.  Entropy-decreasing processes seem to responsible for the formation of a puppy from its original constituents, sperm and an egg.  But then the puppy spends years ripping up your carpet, chewing the legs of the furniture and ripping your favorite magazines into little pieces; in short, increasing the disorder of the universe.  Net effect?  Zero.

shakespeareandleash185

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Just when you thought Physics couldn’t get any Stranger

September 7, 2009 1 Comment

Tachyons, entanglement, cold fusion, dark matter, galactic filaments.  Just when you thought physics couldn’t get any stranger…

– THE VERY COLD: Fractional Quantum Hall Effect: When electrons are magnetically confined and cooled to a third of a degree above absolute zero (See more here), they seem to break down into sub-particles that act in synchronization, but with fractional charges, like 1/3, or 3/7.

– THE VERY HIGH PRESSURE: Strange Matter: The standard model of physics includes 6 types of quarks, including the 2 (“up” and “down”) that make up ordinary matter.  Matter that consists of “strange” quarks, aka Strange Matter, would be 10 times as heavy as ordinary matter.  Does it exist?  Theoretically, at very high densities, such as the core of neutron stars, such matter may exist.  A 1998 space shuttle experiment seems to have detected some, but repeat experiments have not yielded the same results.

– THE VERY LARGE DIMENSIONAL: Multidimensional Space: String theories say that we live in a 10-dimensional space, mostly because it is the only way to make quantum mechanics and general relativity play nicely together.  That is, until physicist Garrett Lisi came along and showed how it could be done with eight dimensional space and objects called octonions.  String theorists were miffed, mostly because Lisi is not university affiliated and spends most of his time surfing in Hawaii.

– THE VERY HOT: Quark-Gloun Plasma: Heat up matter to 2 trillion degrees and neutrons and protons fall apart into a plasma of quarks called quark-gluon plasma.  In April of 2005, QGP appeared to have been created at the Brookhaven National Laboratory’s Relativistic Heavy Ion Collider (RHIC).

My view on all this is that it is scientific business as usual.  100 years ago, we lived in a smaller world; a world described solely by Newtonian Mechanics, our ordinary everyday view of how the world works.  Then, along came relativity and quantum mechanics.  Technological advances in laboratory equipment and optics allowed us to push the limits of speed and validate Relativity, which ultimately showed that Newtonian Mechanics was just an approximation of the larger, more encompassing theory of Relativity at slow speeds.  Similarly we pushed the limits of probing the very small and validated Quantum Mechanics, which showed that Newtonian Mechanics was just an approximation of the larger, more encompassing theory of Quantum Mechanics at large scales.  In the 1960’s, we pushed the limits of heat and energy, discovered  and found that our Quantum Mechanical / Relativistic Theory of the world was really just an approximation at low temperatures of a larger theory that had to encompass Quantum Chromodynamics.  Now, we are pushing the limits of temperature, or the slowing down of particles, and discovering that there must be an even larger theory that describes the world, that explains the appearance of fractional charges at extremely low temperatures.  Why does this keep happening and where does it end?

Programmed Reality provides an explanation.  In fact, it actually provides two.

In one case, the programmers of our reality created a complex set of physical laws that we are slowly discovering.  Imagine a set of concentric spheres, with each successive level outward representing a higher level scientific theory of the world that encompasses faster speeds, higher temperatures, larger scales, colder temperatures, higher energies, etc.  How deep inside the sphere of knowledge are we now?  Don’t know, but this is a model that puts it in perspective.  It is a technological solution to the philosophy of Deism.

The second possibility is that as we humans push the limits of each successive sphere of physical laws that were created for us, the programmers put in place a patch that opens up the next shell of discovery, not unlike a game.  I prefer this model, for a number of reasons.  First of all, wouldn’t it be a lot more fun and interesting to interact with your creations, rather than start them on their evolutionary path and then pay no further attention?  Furthermore, this theory offers the perfect explanation for all of those scientific experiments that have generated anomalous results that have never been reproducible.  The programmers simply applied the patch before anyone else could reproduce the experiment.

Interestingly, throughout the years, scientists have fooled themselves into thinking that the discovery of everything was right around the corner.  In the mid-20th century, the ultimate goal was the Unified Field Theory.  Now, it is called a TOE, or Theory of Everything.

Let’s stop thinking we’re about to reach the end of scientific inquiry and call each successive theory a TOM, or Theory of More.

Because the only true TOE is Programmed Reality.  QED.

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Navigating the Quantum Froth

August 16, 2009 1 Comment

Evidence for Programmed Reality is starting to pour in from all fields.  The latest comes from Gamma-ray imaging from deep space.  Here’s the deal:

Extremely high energy photons are known as gamma rays and are generated only in really cool places like Cern and supermassive black holes that power galaxies.  The cosmologically-originated gamma rays tend to come in bursts and there are special telescopes, such as MAGIC (Major Atmospheric Gamma-ray Imaging Cherenkov Telescope) that detect and measure these bursts.  According to all known laws of physics, all photons no matter their energy level travel at exactly the same speed, namely the speed of light.  Problem is that several gamma ray detectors have noticed that gamma rays from distant galaxies arrive on earth at slightly different times, which makes no sense.

Unless you consider that space is quantized.  Then, the photons have to work their way through the quantum “froth” and the low energy photons can do it easier than the high energy ones, much like radio waves through a low pass filter.  So says Italian physicist Giovanni Amelino-Camelia.  A couple references on this theory include an FXQi article and a recent article from New Scientist.

The reason this effect isn’t normally noticed is that the influence of quantized spacetime is so small, conventional experiments will not demonstrate its impact.  However, as we probe deeper into space and increase the sensitivity of our instruments, we ultimately get to a point where we measure things that demonstrate that the status quo in physics is just an approximation, much as Newtonian physics is just an approximation of Relativistic physics at slow speeds or Quantum Mechanics at large scales.  The recent quantization noise in the GEO600 Gravity Wave Detector is a case in point.  Because it is the most sensitive instrument of its kind, it has reached a resolution limitation that may indicate the granularity of the universe.  With MAGIC, a similar situation exists.  Because it is highly sensitive, it can detect signals whose origin are so far away that they allow for propagation deviations to occur over such a vast region of space.  The 4 minute anomaly that MAGIC observed occurs over 500 million light years.  That means that it is detecting a deviation of 1 part in about 65000000000000 (65 trillion), which apparently is enough to break known laws of physics.

I’m interested in this because the underlying reason for this may very well be the quantization of space.  If so, this and the GEO600 experiments are the first to detect it.  And, for anyone who hasn’t read “The Universe – Solved!” or meandered through this website, I ask the question:

Why might reality be quantized and not continuous?

It takes an infinite amount of resources to create a continuous reality, but a finite amount to create a quantized reality.  By resources, I refer to bits, the information that it takes to model reality.  In order to program a virtual reality, there must be quantization.  It is impossible to develop a program with unlimited resolution.  So the very fact that our reality is quantized may be considered strong evidence that reality is programmed.

What other reason could there be?

 

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Mysteries of the Moon Explained

July 7, 2009 1 Comment

Think we understand that big object in the night sky?  Guess again.  The moon is full of mysteries, some of which baffle scientists more the more we learn about it.  Admittedly, the source of many of these reports has not been fully verified, and I don’t have the time to do the full research.  But hey, this is a blog and by definition, I can take liberties with my sources and talk about whatever I want, right?

For example, rocks from the moon and the earth reportedly have very different minerals; the earth has high concentrations of iron, the moon does not.  This implies that they were not formed from the same source, nor was the moon once part of the earth, as previously thought.

Some lunar rocks supposedly contain brass (a man-made alloy not found naturally), mica, and pure titanium.  Stranger still, Uranium 236 and Neptunium 237, elemental isotopes not found in nature on earth, have been found in rock samples.

The solar system is known to be about 4.5 billion years old, the oldest earth rock is 3.7 billion years old, yet some lunar rocks have been dated to an ages ranging from 4.5 to 5.3 billion years.  The lunar soil is a billion years older than its rocks and of a different composition.

Instruments left behind from Apollo missions detected a “wind of water” in 1971.

Some moon rocks are magnetized, although the moon has no magnetic fields.  Where did the magnetic property of the rocks come from?

Measurements indicate that the moon is less dense at the core than at the crust, which is counter to conventional “geo-logic.”

No one really understands where the moon came from.  Due to differences in composition, it can’t have come from the earth, nor from the same material from which the earth was created. Impacts on the moon (meteors or artificial objects crashed into the surface) have resulted in the measurement of a “ringing” reverberation, sometimes for hours before dying down.  Such an effect typically only occurs in a hollow object, leading some to speculated that the moon is hollow at its core.  No cosmological process can explain this.

The moon is the only satellite to revolve around its planet in a near circular orbit where one side always faces it.

The moon takes up the same angular size in the sky as the sun; hence the possibility of perfect solar eclipses.  No other planet-moon combination comes close.

Most all other satellites orbit their planet in line with the planets ecliptic plane.  But the moon is off by 5 degrees.  Why?

The scientific community has been struggling with these anomalies for many years.  A little internet research and one can easily find creative scientific explanations for most of the above anomalies. Unfortunately, they do not all peacefully coexist.

Programmed Reality has another explanation.  The moon is simply a programmed part of our reality, like everything else.  Its size was selected to create eclipses, its distance to facilitate exploration and generate tides and resultant tidal tables to make boating courses a little more complex.  Reasons for other anomalies have yet to be discovered, but serve to provoke investigation and discourse.  And, of course, without its beautiful prominence in the sky, we might never have known Beethoven’s “Moonlight Sonata”, Glenn Miller’s “Moonlight Serenade”, Pink Floyd’s “Dark Side of the Moon,” and the name of Frank Zappa’s daughter.

Moon Apollo mission

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Gravity is Strange – Unless you understand Programmed Reality

June 22, 2009 1 Comment

Physicists tell us that gravity is one of the four fundamental forces of nature.  And yet it behaves quite differently than the other three.  A New Scientist article breaks down the oddities, a few of which are reproduced here:

– Gravity only pulls.  It doesn’t appear to have an opposing effect, like other forces do.  Notwithstanding the possibility that dark energy is an example of “opposite polarity” gravity, possibly due to unseen dimensions, there appears to be no solid evidence of it as there is with all other forces.

– The strength of other forces are comparable in magnitude, while gravity checks in at 40 orders of magnitude weaker.

– The fine-tuned universe, a favorite topic of this site, includes some amazing gravity-based characteristics.  The balance of early universe expansion and gravitational strength had to balance to within 1 part in 1,000,000,000,000,000 in order for life to form.

The Anthropic Principle explains all this via a combination of the existance of zillions (uncountably large number) of parallel universes with the idea that we can only exist in the one where all the variables line up perfectly for matter and life to form.  But that seems to me to be a pretty complex argument with a few embedded leaps of faith that make most religions look highly logical in comparison.

Then there is the Programmed Reality theory, which as usual, offers a perfect explanation without the need for the hand-waving Anthropic Principle and the “Many Worlds”
interpretation of quantum mechanics.  Gravity is not like other forces, so let’s not keeping trying to “force” it to be (pardon the pun.)  Instead, it is there to keep us grounded on the planet in which we play out our reality, offering the perfect balance of “pull” to keep every fly ball from flying out of the stadium (regardless of the illegal substance abuse of the hitter), to make kite flying a real possibility, and to enable a large number of other enriching activities.  While, at the same time, being weak enough to allow basketball players to dunk and planes to fly, and to enable a large number of other enriching activities.  Our scientists will continue the investigate the nature of gravity via increasingly complex projects like the LHC, unpeeling the layers of complexity that the programmers put in place to keep scientific endeavor, research, and employment moving forward.

Newton's apple  Warped spacetime

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Dark Matter, Parallel Worlds, and Bizarro Neighbors

March 15, 2009 1 Comment

It turns out that it is very likely that an unseen world is occupying the same space that we do.  What goes on there?  Are there Bizarro humans living with Bizarro pets in Bizarro homes, working at Bizarro jobs, just like we do?

Astronomers who have studied the motion of galaxies and clusters of galaxies have noticed that such large astronomical objects rotate too fast for the amount of matter inferred by their size, distance, and luminosity.  Further, in order for the universe to be flat, as it is observed, there must be much more matter than is currently visible.  In fact, by some estimates, observable matter only accounts for less than 1% of the mass of the universe.  The rest, therefore, must be dark – hence the name “dark matter.”  Many varieties of dark matter have been proposed, including exotic dark matter consisting of various high energy loose particles such as neutrinos and theoretical particles called WIMPs (weakly interacting massive particles).  Also in the menu of candidates for dark matter are big chunky masses called MACHOs (massive compact halo objects – don’t astronomers have a great sense of humor?), which include brown dwarfs, planets, or black holes.  Certain studies of the structure of the early universe, however, have demonstrated that MACHOs can not account for more than a fraction of the total dark matter.

As a result, WIMPs are winning the battle.  Anomalous scientific results from Results from ATIC (Advanced Thin Ionization Calorimeter in Antarctica, PAMELA (an Italian space mission called a Payload for AntiMatter Exploration and Light-nuclei Astrophysics), and INTEGRAL (a European Gamma Ray satellite, INTErnational Gamma-Ray Astrophysics Laboratory) ) are starting to narrow down the kinds of particle that could be responsible.  See Kaluza-Klein particles for more (also see New Scientist article).

Interesting, this has some fascinating implications.  The fact that WIMPs don’t interact means we don’t even know they are there.  Because the measurements imply that they are integrated into our space just like ordinary matter is, they are effectively right next to us and we have no way of detecting them.

But what form are they in?  Is it a sea of particles?  Or do they clump like ordinary matter?  The answer appears to be the latter.  According to Hubble data, dark matter clumps at all magnitudes (see Science Daily article), which means it looks pretty much like ordinary matter.

What does all this mean?  All indications are that there is tons (figuratively speaking) of invisible, undetectable material existing right in our own space.  In fact, by all accounts, there is about 7 times as much as our common ordinary matter.  For all we know, there are dark desks, dark Volvos, and dark versions of Donald Trump’s hair.

intergalactic space Bizarro Trump

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String Stars – You Heard It Here First!

February 22, 2009 1 Comment

I remember the days when we were all amazed at the concept of a white dwarf star; the final evolutionary state of most stars after their gravitational collapse.  It can’t collapse any further due to something called electron degeneracy pressure.  I always visualized it by imagining atoms jammed together to the point where their electron shells were nearly touching.  A white dwarf’s density was such that a teaspoonful would weigh as much as an elephant.  They are about the size of the earth.

But there was an even more bizarre concept – the neutron star.  Still more dense, it was proposed by Baade and Zwicky in 1933, a year after the neutron was discovered.  For a star that has more mass than the Chandrasekhar limit, or 1.44 solar masses, when it collapses at the end of its life, its density is even enough to overcome the forces that hold a white dwarf together.  In the late 60’s, one was actually observed and by the 70’s, the concept was considered to be well accepted by most astronomers.  Neutron stars can’t collapse any further due to the Pauli exclusion principle.  I always visualized it by imagining neutrons jammed together to the point where they were nearly touching.  A neutron star is maybe a billion times denser than a white dwarf.  They are about the size of Manhattan.

But then, I thought, what if the mass of the star was so large that even the neutrons collapsed into their constituents, quarks?  Well, I don’t know if anyone else had such an idea and now, doing a little web research, I can’t seem to put my finger on when such a concept was first proposed.  But I’m starting to see a buzz about quark stars.  In 2008, astrophysicists Denis Leahy and Rachid Ouyed proposed the quark star as the result of super-supernovae (http://www.space.com/scienceastronomy/080603-aas-neutron-quark.html).  And now, astrophysicists from the University of Hong Kong have presented evidence of a quark star in super-supernova SN 1987A (http://www.newscientist.com/article/mg20126964.700-quark-star-may-hold-secret-to-early-universe.html)

So, now I wonder, what next?  Quarks probably have their own sub-quark constituents.  String theorists say quarks are made of vibrating strings.  If so, could a massive enough star, or a dense enough hunk of matter overcome “quark degeneracy” and collapse into a “String Star?”  A star consisting of string material that is so compressed it can vibrate anymore?

So I searched the web and am proud to say that I have found no such proposal.  So, I hereby claim it.  Someday, someone will lay claim to discovering a string star.  You heard it here, first.  🙂

 

string theory

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