DOW-UAP-D152: Negative Mass Propulsion - The Mass Dipole, a "Planck Aether" and a Thermonuclear Tunnel Through the Moon

Source file: DOW-UAP-D152_AAWSAP-DIRD-Negative-Mass-Propulsion-January-3-2011.pdf Originating agency: Defense Intelligence Agency (DIA), Defense Warning Office; written under the AAWSAP program Document type: Defense Intelligence Reference Document (DIRD), labelled "Defense Futures"; control number DIA-08-1101-023 Date: 3 January 2011 (information cutoff date, ICOD: 30 August 2010) Classification: UNCLASSIFIED//FOR OFFICIAL USE ONLY (the FOUO marking is struck through on the copy released in 2026) Page count: 43 VIRIN: 260918-D-D0360-1141 PURSUE Release: 6

Summary

"Negative Mass Propulsion" is one of the last two DIRDs in the series produced by AAWSAP, the Defense Intelligence Agency's Advanced Aerospace Weapon System Applications Program. The inside cover states that it was prepared by the Technology Warning Division (DWO-4) of the Defense Warning Office, and the author's name has been replaced with the label "AAP Person 72". The body runs to 39 numbered pages (PDF pages 5 to 43) and is built from 13 sections, one table, three figures, 122 numbered equations and a 17-item reference list.

This is not a balanced literature survey but a first-person theoretical essay, and it makes a strong claim in its very first sentence: "It is easy to prove that there are negative masses all around us, albeit hidden behind positive masses." From there the paper asks how they could be freed for propulsion, and answers that there are only two routes: extremely strong fields or enormous particle energies, which it dismisses at once, or finding places in the universe where nature has already separated negative mass and from which it could be "mined".

The second half of the paper moves from theoretical physics to a startling engineering sketch: a calculation of the pressure and temperature at the centre of the Moon, and an estimate that a tunnel to the centre would require about 50 megatons of thermonuclear explosives. The paper does not mention UFOs, unidentified aerial phenomena or foreign aircraft anywhere.

Research Article

The document and its place in the AAWSAP series

The cover carries the date 03 January 2011, an information cutoff date (ICOD) of 30 August 2010, the control number DIA-08-1101-023 and the label "Defense Futures" (page 1). The administrative notes on page 2 describe the paper as "one in a series of advanced technology reports produced in FY 2010" under the "Advanced Aerospace Weapon System Applications (AAWSA) Program", and direct comments and questions to AAP Person 1, "AAWSA Program Manager", at ATTN: JUIAF - DI/DWO-3, Bldg 6000, Washington, DC 20340-5100. A boilerplate copyright warning about "the photographs in this publication" appears as well, although the paper contains no photographs, only a table and three line drawings.

Of the program's technical areas, the paper serves propulsion first and foremost, and to a lesser degree materials, through its idea of an "ultra-light" matter with the strength of steel. It was written eight days before DOW-UAP-D153 (11 January 2011), the last DIRD in the series, which deals with negative energy in the quantum vacuum. Both papers deal with "negative" quantities, but with two different concepts: D153 concerns the negative energy density of quantum fields, while D152 concerns the negative mass of matter.

A practical note: the page numbers printed on the document run four lower than the PDF page numbers (because of the cover, the inside cover, the contents page and a blank page). Page numbers in this article are PDF page numbers.

Four cases of gravity, and a "mass dipole" that accelerates itself

Section 1 opens with Table 1 ("Interactions"), which sets out four cases for a test particle placed near a field-producing mass, on the assumption that the equivalence principle between inertial and gravitational mass holds. If the field-producing mass is positive, the test particle is attracted whether its own mass is positive or negative; if it is negative, the particle is repelled. The conclusion is stated explicitly against the popular image: a negative-mass particle in the Earth's gravitational field "would not fall upwards, as happens in science-fiction antigravity machines" (page 6).

Figure 1 ("Forces") shows the case of two masses of equal magnitude and opposite sign. Such a pair, a "mass dipole", accelerates itself: the negative mass chases the positive one and both accelerate together. The total energy and momentum of the pair remain zero, so the conservation laws are not violated, and the dipole would eventually reach the velocity of light. The author adds that even without an appreciable gravitational interaction, a dipole with zero or near-zero inertial mass could be accelerated to very high velocities "with negligible jet power and energy" (page 7).

To show that negative mass does not contradict general relativity, the paper takes the Schwarzschild solution and replaces M with -M (equations 1 and 2). The one obstacle it acknowledges is special relativity: in a relativistic quantum field theory particle number is not conserved, and the existence of negative masses would make all matter unstable against decay into them. Its answer is to return to the older, dynamic interpretation of Lorentz and Poincare, with an aether that has a grainy structure at about the Planck length, around 10⁻³³ cm, in which special relativity would break down only at energies far beyond any accelerator or cosmic ray (pages 7 to 8).

In mainstream physics negative mass has never been observed, and the "chasing" behaviour of Figure 1 is a purely theoretical result. The paper itself credits the first attempt to bring a mass dipole into general relativity to H. Bondi, in a 1957 paper.

Arguing with Bondi: a "sea of negative mass" and the spin of the electron

Sections 2 to 4 take issue with Bondi's analysis. According to the paper, Bondi assumed the gravitational potential to be small, reducing Einstein's nonlinear field equations to the linear Laplace equation. "It is here that we must disagree with Bondi," the author writes (page 9), and in a personal footnote, rare in this series, recounts meeting Bondi in 1993 on a shared flight from Graz, Austria, after a meeting of an academy to which both belonged, and asking him how his solution could be correct when it left out the gravitational field of the pair itself.

The tool the author offers instead is the "nonlinear Newtonian theory of gravity" of F. Hund (1948). A concrete example illustrates it: on a merry-go-round with a 10-second period, an angular velocity of 0.6 per second, the centrifugal force is equivalent to the gravitational repulsion of a uniform negative mass density of 10⁶ g/cm³, which in absolute value is about the density of a white dwarf (page 10). "The mass density (14) is not fictitious but represents physical reality," the paper states (page 11). Because the energy of the gravitational field is negative, the corresponding mass density is negative too, and hence: "The earth is therefore embedded in a sea of negative mass" (page 12). A large mass, the paper adds, is shielded by the negative mass of its own field (pages 13 to 14).

Section 5 is the load-bearing pillar of the claim that negative mass is "easy to prove". Dirac's equation for the electron contains negative-energy components and therefore, following Schrodinger, negative-mass components. The paper presents the electron as a "pole-dipole" particle: a positive mass slightly larger than its negative partner, so that the centre of mass moves in a circle at the velocity of light (Figures 2 and 3, pages 15 to 16). This, for the author, is the origin of spin and of the electron's "trembling motion", the Zitterbewegung described by Schrodinger (page 17). Following a hypothesis by H. Honl and A. Papapetrou (1939 to 1940), the author calculates that the positive mass bound up in an electron is about 6×10⁻¹³ g, "larger by a factor 3.6×10¹¹ times the mass of the proton" (page 18). From this follows the engineering conclusion of the whole paper: negative mass is bound so tightly that it cannot be a simple matter to free it.

Zitterbewegung is indeed a known result of the Dirac equation, but reading it as a pair of real masses, one positive and one negative, is an interpretation the author takes from older work and is not part of mainstream physics.

The "Planck aether": quantum theory, relativity and cosmology from one source

Sections 6 to 9 develop an entire theoretical framework, the "Planck aether hypothesis", resting on earlier publications (items 7 and 8 in the reference list). Space is pictured as filled with equal numbers of positive and negative Planck-mass particles, about 10⁻⁵ g each, one per cubic Planck length. The paper assumes that the fundamental group of nature is SU2, so that "nature works like a computer with a binary number system", and says this explains why space has three dimensions (page 19). Local violations of Newton's action-reaction law between particles of opposite sign are said to produce Heisenberg's uncertainty relation and, through the Madelung transformation, the Schrodinger equation (pages 19 to 21). From the same picture the author derives the Lorentz contraction "dynamically", relative to a preferred reference frame (Section 7), and reinterprets the Aharonov-Bohm effect as two superfluids, one positive and one negative, counter-rotating (Section 8, pages 27 to 33).

Section 9 carries the idea into cosmology: negative masses in equilibrium at negative temperature (after V. Vysin, 1962) and, by the author's own assumption, with negative entropy, "like a positive and negative photographic image" (page 34). The result, equation 104, sets the flatness parameter of the universe at exactly 1 and the cosmological constant and total entropy at zero, and the "horizon problem" is solved with superluminal shock waves instead of inflation (page 35). These are the author's own claims. The standard cosmological model (Lambda-CDM) infers a positive cosmological constant from the accelerating expansion of the universe, and treats inflation as the accepted answer to the horizon problem.

From galaxies to the centre of the Moon

Section 10 connects the framework to the practical question. It recalls the conjecture of R.L. Forward, at the 1999 NASA Breakthrough Propulsion Workshop, that negative matter fills the vast voids between galaxies, and suggests that negative matter accumulated in the gravitational wells of galaxies flattens their centres, which might explain the cusp/core problem of galactic halos (pages 35 to 36). If this happens at the centres of galaxies, it should also happen, to a lesser degree, at the centres of the Sun, the planets and the Moon. The Sun and planets with a hot molten core are ruled out, but not the Moon, which has "the deepest potential well near the earth" (page 36).

Section 11 does the arithmetic: the Moon's radius is 1.74×10⁸ cm, its surface gravity 162 cm/s² and its mean density 3.33 g/cm³, giving a central pressure of about 5×10¹⁰ dyn/cm², some 50,000 atmospheres. From the ideal-gas relation p=nkT it estimates a temperature of about 4,000 K, and declares: "Both the pressure and the temperature are technically manageable" (pages 36 to 37). Negative matter, if it has accumulated there over billions of years, would most likely take the form of "ultra-light" matter. Drawing on a report by "a Swedish research group" of an ultra-dense phase of deuterium more than 100,000 times denser than water, the author asks the reader to suppose a matter 100,000 times lighter than steel yet as strong. Such matter would not produce Forward's self-chasing dipole, but it would dramatically reduce the energy needed to accelerate a spacecraft. The proposed test: seismic wave tomography using nuclear explosions set off on the lunar surface (page 37).

Section 12, "Making a Tunnel through the Moon", is the engineering sketch. The cohesive energy of rock is about 10¹⁰ erg/cm³, so a one-kiloton explosion (4×10¹⁹ erg) crushes rock to a radius of about 10 metres, and a 10-kiloton one to twice that. To get a cylinder rather than a sphere, a thermonuclear "shape charge" or explosive lens is proposed. At the centre of the Moon heat is the problem: heat diffusion through a 20-metre layer of solid rock would take about 10⁹ seconds, roughly 30 years, so the author proposes pumping a liquid alkali metal such as lithium, "abundantly available on the moon", through the crushed rock. By Darcy's law the flow would cross the layer in about an hour, and the coolant volume needed is about half the rock volume (pages 38 to 39).

The central calculation is on page 40: the energy to shatter a tunnel from the centre of the Moon to its surface is about 2×10²⁴ erg, or about 5×10⁴ kilotons, "50 Megaton", and it must be released quite nonuniformly along the shaft. Because at depths of less than about 10 km charges under 10 kilotons would suffice, a yield the paper calls uneconomical, it recommends using thermonuclear devices throughout, with their lower cost per unit of yield, and jet-generating thermonuclear explosive lenses. Ignition could be by a fission charge, "but conceivably also by a powerful laser beam" projected down the shaft. The tunnel walls would be ceramic, because the Moon has little water for making concrete (page 41).

What the paper does not say, and internal inconsistencies

The paper does not mention UFOs or unidentified aerial phenomena, does not discuss the capabilities of foreign states and offers no threat assessment. It contains no timeline, cost estimate or experimental programme, apart from the idea of lunar seismic tomography. Nor does it address the legal and political question of nuclear explosions in space, which were prohibited by the 1963 Partial (Limited) Test Ban Treaty.

The engineering part also contains inconsistencies. On page 37 the hypothesised negative matter is lighter than ordinary matter "perhaps by an order of magnitude", and a few lines later 100,000 times lighter than steel. On page 39 the rock volume is written "(20 cm)³ ~ 10⁴ m³" and the coolant volume "5 × 10³ cm³", apparently where metres were meant; the tunnel radius is 20 metres on page 40 but "~ 10 m" on page 41; and "Nuclear fusion explosions below a yield of 10 kiloton become uneconomical" is explained by the fissionable material of a critical assembly, which suggests fission was meant (pages 40 to 41). These are editorial slips, but they show the paper did not receive careful technical editing.

Most importantly, the claim that negative mass is "easy to prove" rests on the author's interpretation of the Dirac equation and on the author's own "Planck aether" framework, not on observation. As the official summary notes, the conclusions depend on a long chain of unverified assumptions: that negative mass exists, that it can be separated, and that it behaves as described at macroscopic scale.

Significance

D152 is one of the most speculative papers in the DIRD series, and it shows how wide the "supporting topics" funded by the program were: an intelligence-agency reference document here deals with the spin of the electron, the cosmological constant and a thermonuclear tunnel through the Moon. At the same time, its conclusion is more guarded than its title. It explicitly rejects the popular dream of "free" negative-mass propulsion, Forward's chasing dipole, and holds that the first route, freeing negative mass by force, is not feasible. The second route it presents as speculation: "the speculative existence of macroscopic bodies approaching zero rest mass" (page 42).

For the reader of the PURSUE archive, the paper's value is mainly documentary: it shows what kind of ideas were gathered under the heading of "advanced aerospace weapon system applications", and what a reference document looks like when it is written almost entirely as one researcher's personal essay. It contains no evidence of any kind about unidentified aerial phenomena.

Key People

Locations

Key Concepts

Notable Quotes

"It is easy to prove that there are negative masses all around us, albeit hidden behind positive masses." -- page 5

"The first of these two possibilities is for all practical means excluded, because if possible at all, it would depend on electromagnetic or gravitational fields with strengths beyond what is technically attainable, or on extremely large particle energies likewise not attainable." -- page 5

"Making a tunnel through the moon, provided there is a good supply of negative mass, could revolutionize interstellar space flight. A sequence of thermonuclear shape charges would be required to make such a tunnel technically feasible." -- page 5

"It is this property of self-acceleration without expenditure of energy that has intrigued many researchers and raised the prospect of a propulsion system without limits." -- page 7

"We therefore see that there are huge amounts of negative masses bound to positive masses in Dirac spinors. It shows that it cannot be a simple matter to free the negative masses from the positive masses." -- page 18

"Suppose that in the center of the moon the accumulation of negative matter has led to a form of matter which is 100,000 times lighter than steel, but still has the strength of steel." -- page 37

"It must be emphasized that this energy must be quite nonuniformly released along the tunnel shaft." -- page 40

"This is the speculative existence of macroscopic bodies approaching zero rest mass, of importance for space flight because such matter would greatly reduce its energy requirements." -- page 42