There are so many competing ideas on how to realize interstellar propulsion. These include chemical rockets, ion propulsion, nuclear engines, solar sails, atomic bomb pulse detonation, antimatter drives, small black holes, warp drives and much more.

How do we sift through all these competing ideas?

For his objectivity and courage in stating that mathematics has become so sophisticated that it can now be used to prove anything, I have named the approach to solving this interstellar challenge the Kline Directive, in honor of the late Prof. Morris Kline.

To achieve interstellar travel, the Kline Directive instructs us to be bold, to explore what others have not, to seek what others will not, and to change what others dare not. To extend the boundaries of our knowledge, to advocate new methods, techniques and research, to sponsor change not status quo, on 5 fronts, (1) Legal Standing, (2) Safety Awareness, (3) Economic Viability, (4) Theoretical-Empirical Relationship and (5) Technological Feasibility.

Legal Standing: Do we have the protection of the law?

Mr. Gregory W. Nemitz of The Eros Project is the first person I know, who pushed the limits of the law. As a US taxpayer, Nemitz claimed ownership of Asteroid 433, Eros, and invoiced NASA $20,000 for parking and storage of the NEAR Shoemaker spacecraft. Citing faulty interpretation of the Outer Space Treaty of 1967, NASA refused to pay. On April 26, 2004 U.S. District Court Judge Howard McKibben dismissed the case. We have to address this. What is to stop other governments from imposing taxes on our outer space commercial activities that is “for the benefit and in the interests of all countries”?

Safety Awareness: Can we protect our crew and our planet?

In the heady rush to propose ideas for new propulsions systems or star drives it is very easy to overlook safety considerations. Quoting E.J. Opik, “Is Interstellar Travel Possible?” Irish Astronomical Journal, Vol 6, page 299. “The exhaust power of the antimatter rocket would equal the solar energy power received by the earth — all in gamma rays”. And Opik quotes the eminent Carl Sagan, Planet. Space Sci., pp. 485–498, 1963, “So the problem is not to shield the payload, the problem is to shield the earth”.

Economic Viability: Can realistic commercial viability be determined?

Space exploration economic viability is not an accounting problem that can be solved by CFOs and accountants. This economic viability is a physics and engineering problem. For example, chemical rocket propulsion to Alpha Centauri, our nearest star, would cost about $1.19x10^14 or 23x 2011 world GDP.

Theoretical-Empirical Relationship: Is the hypothesis empirically sustainable?

String theories are a good example of a theoretical-empirical relationship that is yet to be proved. Let’s remember Prof. Morris Kline’s words when theorist claim a velocity of 10^32 x c (velocity of light) is achievable. Don’t get me wrong. Mathematics is vital to the progress of the sciences, but it needs to be tempered with real world experimental evidence, otherwise it is just conjecture, and ties up our search for interstellar propulsion technologies.

The reverse is equally valid. Without the theoretical underpinnings, there will not be much experimental progress. Podkletnov’s gravity shielding experiments are a good example. In 2 decades since Podkletnov published his experiments, there has not been any experimental progress. My inference is that none of the proposed theoretical explanations addressed all the observations and therefore, could not guide future experiments.

Technological Feasibility: Does it work?

Technological feasibility in a realistic and finite time frame is vital. Technological feasibility quickly leads back to the question of commercial viability. Developing future feasible technologies is an iterative process between technological feasibility and commercial viability, until we can reach the stars without having to ask the question, whom do we select to leave Earth?

Applying the Kline Directive, a quick method of eliminating competing technologies is to construct the Interstellar Challenge Matrix that compares the pros and cons of each competing propulsion technology.

Can we hasten the development of interstellar propulsion technologies? Yes.

Since disproving the validity of Alcubierre-type warp drives, interstellar propulsion physics is currently non-existent. To birth this propulsion physics, in 2012, I classified physical hypotheses/theories into 3 categories (1) Type 1: The Millennium Theories, (2) Type 2: The 100-Year Theories and (3) Type 3: The Engineering Feasible Theories.

Type 1, Millennium Theories require more than a 100 years and maybe up to 1,000 years to prove or disprove. Mathematically correct but inscrutable with physically verifiable experiments, even in the distant future. String and quantum gravity theories fall into this category. Why? If we cannot even figure out how to engineer-modify 4-dimensional spacetime, how are we going to engineer-modify a 5-, 6-, 9-, 11- or 23-dimensional universe?

Type 2, 100-Year Theories show promise of being verified with technologies that would require several decades to engineer, test and validate, and do not lend themselves to an immediate engineering solution. The engineering solution is theoretically feasible but a working experiment or technology is some decades away as the experimental or physical implementation is not fully understood.

Type 3, Engineering Feasible Theories lend themselves to engineering solutions, today. They are falsifiable today, with our current engineering technologies, if one knows what to test for and how to test for these experimental observations.

We as a society need to apply the Kline Directive to invent new propulsion physics theories, that are at best Engineering Feasible and at worst 100-Year theories.

We now have the tools to quickly eliminate both theoretical and experimental proposals that are highly likely to be unproductive, and focus on those that truly have potential of delivering commercial interstellar propulsion technologies. In the US money is no object, as the combined 2015 DARPA and NSF budgets, is $10.26 billion. Allocating a very small slice of these budgets for propulsion physics would be an enormous step forward.

(This article was originally published in the Huffington Post.)

So what is it? Are warp drives feasible? The answer is both yes and no. Allow me to explain.

The empirical evidence of the Michelson-Morley experiment of 1887, now known as the Lorentz-FitzGerald Transformations (LFT), proposed by FitzGerald in 1889, and Lorentz in 1892, show beyond a shadow of doubt that nothing can have a motion with a velocity greater than the velocity of light. In 1905 Einstein derived LFT from first principles as the basis for the Special Theory of Relativity (STR).

So if nothing can travel faster than light why does the Alcubierre-type warp drive matter? The late Prof. Morris Klein explained in his book, Mathematics: The Loss of Certainty, that mathematics has become so powerful that it can now be used to prove anything, and therefore, the loss of certainty in the value of these mathematical models. The antidote for this is to stay close to the empirical evidence.

My good friend Dr. Andrew Beckwith (Prof., Chongqing University, China) explains that there are axiomatic problems with the Alcubierre-type warp drive theory. Basically the implied axioms (or starting assumptions of the mathematics) requires a multiverse universe or multiple universes, but the mathematics is based on a single universe. Thus even though the mathematics appears to be sound its axioms are contradictory to this mathematics. As Dr. Beckwith states, “reducto ad absurdum”. For now, this unfortunately means that there is no such thing as a valid warp drive theory. LFT prevents this.

For a discussion of other problems in physical theories please see my peer reviewed 2013 paper “New Evidence, Conditions, Instruments & Experiments for Gravitational Theories” published in the Journal of Modern Physics. In this paper I explain how General Relativity can be used to propose some very strange ideas, and therefore, claiming that something is consistent with General Relativity does not always lead to sensible outcomes.

The question we should be asking is not, can we travel faster than light (FTL) but how do we bypass LFT? Or our focus should not be how to travel but how to effect destination arrival.

Let us take one step back. Since Einstein, physicists have been working on a theory of everything (TOE). Logic dictates that for a true TOE, the TOE must be able to propose from first principles, why conservation of mass-energy and conservation of momentum hold. If these theories cannot, they cannot be TOEs. Unfortunately all existing TOEs have these conservation laws as their starting axioms, and therefore, are not true TOEs. The importance of this requirement is that if we cannot explain why conservation of momentum is true, like Einstein did with LFT, how do we know how to apply this in developing interstellar propulsion engines? Yes, we have to be that picky, else we will be throwing millions if not billions of dollars in funding into something that probably won’t work in practice.

Is a new physics required to achieve interstellar propulsion? Does a new physics exists?

In 2007, after extensive numerical modeling I discovered the massless formula for gravitational acceleration, g=τc^2, where tau τ is the change in the time dilation transformation (dimensionless LFT) divided by that distance. (The error in the modeled gravitational acceleration is less than 6 parts per million). Thereby, proving that mass is not required for gravitational theories and falsifying the RSQ (Relativity, String & Quantum) theories on gravity. There are two important consequences of this finding, (1) we now have a new propulsion equation, and (2) legacy or old physics cannot deliver.

But gravity modification per g=τc^2 is still based on motion, and therefore, constrained by LFT. That is, gravity modification cannot provide for interstellar propulsion. For that we require a different approach, the new physics.

At least from the perspective of propulsion physics, having a theoretical approach for a single formula g=τc^2 would not satisfy the legacy physics community that a new physics is warranted or even exists. Therefore, based on my 16 years of research involving extensive numerical modeling with the known empirical data, in 2014, I wrote six papers laying down the foundations of this new physics:

1. “A Universal Approach to Forces”: There is a 4th approach to forces that is not based on Relativity, String or Quantum (RSQ) theories.
2. “The Variable Isotopic Gravitational Constant”: The Gravitational Constant G is not a constant, and independent of mass, therefore gravity modification without particle physics is feasible.
3. “A Non Standard Model Nucleon/Nuclei Structure”: Falsifies the Standard Model and proposes Variable Electric Permittivity (VEP) matter.
4. “Replacing Schrödinger”: Proposes that the Schrödinger wave function is a good but not an exact model.
5. “Particle Structure”: Proposes that the Standard Model be replaced with the Component Standard Model.
6. “Spectrum Independence”: Proposes that photons are spectrum independent, and how to accelerate nanowire technology development.

This work, published under the title Super Physics for Super Technologies is available for all to review, critique and test its validity. (A non-intellectual emotional gut response is not a valid criticism). That is, the new physics does exist. And the relevant outcome per interstellar propulsion is that subspace exists, and this is how Nature implements probabilities. Note, neither quantum nor string theories ask the question, how does Nature implement probabilities? And therefore, are unable to provide an answer. The proof of subspace can be found in how the photon electromagnetic energy is conserved inside the photon.

Subspace is probabilistic and therefore does not have the time dimension. In other words destination arrival is not LFT constrained by motion based travel, but is effected by probabilistic localization. We therefore, have to figure out navigation in subspace or vectoring and modulation. Vectoring is the ability to determine direction, and modulation is the ability to determine distance. This approach is new and has an enormous potential of being realized as it is not constrained by LFT.

Yes, interstellar propulsion is feasible, but not as of the warp drives we understand today. As of 2012, there are only about 50 of us on this planet working or worked towards solving the gravity modification and interstellar propulsion challenge.

So the question is not, whether gravity modification or interstellar propulsion is feasible, but will we be the first nation to invent this future?

(Originally published in the Huffington Post)

In this post I explain two more mistakes in physics. The first is 55 years old, and should have been caught long ago.

Bondi, in his 1957 paper “Negative mass in General Relativity”, had suggested that mass could be negative and there are surprising results from this possibility. I quote,

“… the positive body will attract the negative one (since all bodies are attracted by it), while the negative body will repel the positive body (since all bodies are repelled by it). If the motion is confined to the line of centers, then one would expect the pair to move off with uniform acceleration …”

As a theoretician Bondi required that the motion be “confined to the line of centers” or be confined to a straight line. However, as experimental physicist we would take a quantity of negative mass and another quantity of positive mass and place them in special containers attached two spokes. These spokes form a small arc at one end and fixed to the axis of a generator at the other end. Let go, and watch Bondi’s uniform straight line acceleration be translated into circular motion driving a generator. Low and behold, we have a perpetual motion machine generating free electricity!

Wow! A perpetual motion machine hiding in plain sight in the respectable physics literature, and nobody caught it. What is really bad about this is that Einstein’s General Relativity allows for this type of physics, and therefore in General Relativity this is real. So was Bondi wrong or does General Relativity permit perpetual motion physics? If Bondi is wrong then could Alcubierre too be wrong as his metrics requires negative mass?

Perpetual motion is sacrilege in contemporary physics, and therefore negative mass could not exist. Therefore negative mass is in the realm of mathematical conjecture. What really surprised me was the General Relativity allows for negative mass, at least Bondi’s treatment of General Relativity.

This raises the question, what other problems in contemporary physics do we have hiding in plain sight?

There are two types of exotic matter, that I know of, the first is negative mass per Bondi (above) and the second is imaginary (square root of −1) mass.  The recent flurry of activity of the possibility that some European physicists had observed FTL (faster than light) neutrinos, should also teach us some lessons.

If a particle is traveling faster than light its mass becomes imaginary. This means that these particles could not be detected by ordinary, plain and simple mass based instruments. So what were these physicists thinking? That somehow Lorentz-Fitzgerald transformations were no longer valid? That mass would not convert into imaginary matter at FTL? It turned out that their measurements were incorrect. Just goes to show how difficult experimental physics can get, and these experimental physicists are not given the recognition due to them for the degree of difficulty of their work.

So what type of exotic matter was Dr. Harold White of NASA’s In-Space Propulsion program proposing in his presentation at the 2012 100-Year Starship Symposium? Both Alcubierre and White require exotic matter. Specifically, Bondi’s negative mass. But I’ve shown that negative mass cannot exist as it results in perpetual motion machines. Inference? We know that this is not technologically feasible.

That is, any hypothesis that requires exotic negative mass cannot be correct. This includes time travel.

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Benjamin T Solomon is the author & principal investigator of the 12-year study into the theoretical & technological feasibility of gravitation modification, titled An Introduction to Gravity Modification, to achieve interstellar travel in our lifetimes. For more information visit iSETI LLC, Interstellar Space Exploration Technology Initiative.

Solomon is inviting all serious participants to his LinkedIn Group Interstellar Travel & Gravity Modification.