Documents / Official release
This Defense Intelligence Reference Document, DIA-08-1004-004, is dated 6 April 2010. The Acquisition Support Division of the Defense Intelligence Agency's Defense Warning Office prepared it as one in a series of advanced technology reports from FY 2009 under the Advanced Aerospace Weapon System Applications Program. It reviews the physics of traversable wormholes and flat-faced "stargate" solutions, and it covers how negative energy might be generated in the laboratory. It concludes that the key technical challenge is identifying and producing exotic matter.
From the source: Release of 2026-09-18 Incident: 4/6/10, 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 traversable wormholes and “stargates” as hypothetical spacetime structures within general relativity that theoretically offer a means of faster-than-light travel or communication. The report focuses extensively on the requirement for exotic, negative-energy matter to stabilize and keep such geometries open for the passage of macro-scale objects. It reviews standard wormhole models, describes a flat-throated “stargate” variant, and argues that violations of general relativity's standard energy conditions do not physically rule such structures out, citing microscopic, transient negative-energy effects observed in Casimir-type laboratory phenomena. However, the document acknowledges that the transition from microscopic quantum fluctuations to macroscopic engineering is an unresolved barrier. While small-scale negative-energy effects are observable, there is no known mechanism to generate, concentrate, or stabilize the amounts of exotic matter proposed to be required to sustain a traversable macroscopic wormhole. Ultimately, while the paper frames wormhole concepts within accepted relativistic physics, it confirms that the gap between theoretical models and any realizable technology remains enormous.
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Traversable Wormholes, Stargates, and Negative Energy
I. Summary
Implementation of faster-than-light (FTL) interstellar travel via traversable
wormholes generally requires the engineering of spacetime into very
specialized local geometries. The analysis of these via Einstein's General
Theory of Relativity, plus the resultant equations of state, demonstrates that
such geometries require the use of "exotic" matter. It has been claimed that
since such matter violates the energy conditions, FTL spacetimes are not
plausible. However, it has been shown that this is a spurious issue. The
identification, magnitude, and production of exotic matter are seen to be a key
technical challenge, however. These issues are reviewed and summarized, and
an assessment on the present state of their resolution is provided.
In 1985 CalTech physicists M. Morris and K. Thorne discovered the principle of
traversable wormholes based on Einstein's General Theory of Relativity
(published in 1915). Morris and Thorne (Reference 1) and Morris et al.
(Reference 2) did this as an academic exercise at the request of Carl Sagan,
who had completed the draft of his novel Contact. This little exercise led to the
development of two new cottage industries in spacetime physics research: the
study of traversable wormholes and the study of time machines. Wormholes
are hyperspace tunnels through spacetime connecting either remote regions
within our universe or two different universes; they even connect different
dimensions and different times. Space travelers would enter one side of the
tunnel and exit the other, passing through the throat along the way. The
travelers would move at~ c (c is the speed of light, 3 x 108 m/s) through the
wormhole and therefore not violate Special Relativity, but external observers
would view the travelers as traversing multi-light-year distances through
space at FTL speed; Figure 1 illustrates this effect. A "stargate" is a special
class of traversable wormhole solutions to Einstein's general relativistic field
equation that possesses very simple physics and flat entry and exit openings.
Traversable wormholes are unlike the well-known, non-traversable Einstein
Rosen Bridges or Schwarzschild wormholes that are formed from collapsed
stellar matter (that is, black holes) or spherically symmetric vacuum regions.
Black holes are collapsed stars that have all their mass concentrated at an
infinitesimal point where the induced gravitational field crushes all matter and
spacetime. However, even Einstein-Rosen bridges can be made traversable by
an infinitesimal tweaking of their spacetime metric. In the case of black holes,
the singularity of collapsed matter, along with its crushing gravity field, totally
blocks the way through the tunnel. A traversable wormhole does not have a
singularity blocking the tunnel or any crushing gravity field. Explorers would
enter one side of the tunnel, travel through the throat, and exit the other side.
Traversable wormholes also do not possess an event horizon, a region of high
gravitational field strength separating the inside space surrounding the black
hole's singularity from the outside universe. Once you go through a black
hole's event horizon, you can never come back out because you will have to
attain FTL speed to escape it. Not even light can escape from an event horizon.
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Official release, from the pursue collection. The PDF is mirrored here; the original link is above. 42 pages are in the text index: search them above, or from the library's search.