AAWSAP DIRD, Negative Mass Propulsion, January 2011

This Defense Intelligence Reference Document, DIA-08-1101-023, is dated 3 January 2011. It was prepared by the Defense Intelligence Agency's Defense Warning Office as one of a series of advanced technology reports produced in FY 2010 under the Advanced Aerospace Weapon System Applications program. It covers theories of negative mass, including Bondi's mass dipole, Zitterbewegung and a Planck aether hypothesis. It proposes tunneling through the Moon with thermonuclear shaped charges to search for trapped negative matter. It concludes that such propulsion may perhaps be possible through an ultra-light form of matter but remains speculative.

From the source: Release of 2026-09-18 Incident: 1/3/11, Las Vegas, Nevada. Released with redactions. This document is a Defense Intelligence Reference Document (DIRD), a technical reference format used by the Defense Intelligence Agency (DIA) to capture baseline knowledge on a specific topic for later analytic use. DIRDs are best understood as reference and synthesis products rather than as original research. It is one of 38 DIRDs produced under the Advanced Aerospace Weapon System Applications Program (AAWSAP) between 2009 and 2011. Because AAWSAP’s scope permitted a broad range of supporting topics, not every DIRD in the series directly concerns aerospace systems or future threat assessment. The following summary reflects the DIRD’s scope and framing at the time of writing and should not be read as implying current validation of the concepts discussed. This DIRD examines whether negative mass could exist in a physically meaningful way and whether it could someday reduce the energy cost of spaceflight. The report reviews the unusual dynamics that would follow if positive and negative mass could interact, including self-accelerating mass pairs and matter with very low or nearly zero effective inertia, and treats such ideas as at least formally compatible with certain extensions of gravitational theory. It then considers two broad paths toward practical use: creating or separating negative mass through extreme fields or particle energies, and locating naturally separated negative matter in deep gravitational wells such as galactic centers or possibly the Moon. However, the document also concludes that the first path is effectively beyond technical reach and treats the second as highly uncertain, resting on a long chain of unverified assumptions about the existence, separability, and macroscopic behavior of negative mass. Overall, this DIRD is a far-reaching theoretical exploration of an exotic propulsion concept whose practical application depends on premises that remain unestablished in consensus physics.

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Negative Mass Propulsion
Summary
It is easy to prove that there are negative masses all around us, albeit
hidden behind positive masses. But their use for propulsion by reducing the
inertia of matter, for example in the limit of macroscopic bodies with zero rest
mass, depends on a technical solution to free them from their imprisonment by
positive masses. It appears that there are basically two ways this might be
achieved: 1. By the application of strong electromagnetic or gravitational
fields or by high particle energies; 2. By searching for places in the universe
where nature has already done this separation, and from which the negative
masses can be mined.
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.
With regard to the 2nd possibility, it has been observed that non
baryonic cold dark matter tends to accumulate near the center of galaxies, or
places in the universe which have a large gravitational potential well. Because
of the equivalence principle of general relativity, the attraction towards the
center of a gravitational potential well, produced by a positive mass, is for
negative masses the same as for positive masses. Large amounts of negative
masses might have over billions of years been trapped in these gravitational
potential wells.
Now it just happens that the center of the moon is a potential well, not
too deep that it cannot be reached by making a tunnel through the moon, not
possible for the deeper potential well of the earth, where the temperature and
pressure are too high. 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.
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