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This Defense Intelligence Reference Document, dated 10 December 2010, was prepared by the Defense Intelligence Agency's Defense Warning Office under the Advanced Aerospace Weapon System Applications program. It examines quantum computing and DNA-based molecular computing as options for onboard supercomputing in future spaceflight. It forecasts working ion trap quantum computers within 10 years, simple DNA tile computing within 20 years, and self-repairing DNA computers and hybrid quantum dot systems on a 40-year horizon.
From the source:Release of 2026-09-18 Incident: 12/10/10, 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 surveys advanced computing concepts for future space and automation applications, focusing on quantum and molecular (DNA-based) computing as potential alternatives to conventional silicon electronics. The report introduces quantum computing principles alongside DNA-based logic gates, self-assembly, and nanoscale repair mechanisms, arguing that these unconventional architectures might eventually offer advantages in radiation tolerance, physical robustness, and specialized onboard processing for space-based platforms. It notes that near-term practical barriers remain substantial. Quantum systems continue to depend on complex cryogenics, shielding, and unsolved reliability challenges, while DNA-based computing remains a far-future concept rather than a viable alternative to general-purpose processors. Overall, the document presents both frameworks as long-term possibilities to complement, rather than immediately replace proven space-qualified electronics. It concludes that the stronger, nearer-term cases for such architectures are in highly specialized or hybrid roles rather than in fully mature general-purpose onboard computing applications.
UNCLASSIFIED/; FOR OFFICIAL U.!I! er•tY landscapes traversed by molecules. The capability for computation is also needed to analyze these data and, in many applications, some rudimentary processing units such as the logic gate networks shown in the previous section would be enough to achieve useful functionalities. To exh ibit these capabilities, a team of scientists from Columbia University, Arizona State University, the University of Michigan, and the California Institute of Technology (Caltech) (123) have programmed an autonomous molecular "robot" made out of DNA to start, move, turn, and stop while following a DNA track. This development could ultimately lead to molecular systems that might one day be used for medical therapeutic devices and molecular-scale reconfigurable robots-robots made of many simple units that can reposition or even rebuild themselves to accomplish different tasks. The researchers constructed a trail of molecular "bread crumbs" on the DNA origami track by stringing additional single-stranded DNA molecules, or oligonucleotides, off the ends of the staples. These represent the cues that tell the molecular robots what to do-start, walk, turn left, turn right, or stop, for example-akin to the commands given to traditional robots. We will discuss the "nano walker" in greater detail in a later section in this treatise. It is this third function, the controlled movement of molecules through the aid of nanometers that will be discussed next. DNA Nanomotors Molecular-size motors have evolved in nature, where they are used in virtually every important biological process . In contrast, the development of synthetic nanometers that mimic the function of these amazing natural systems and that could be used in man-made nanodevices is in its infancy. Building nanoscale motors is not just an exercise in scaling down the design of a macroworld engine to nanoscale dimensions. Many factors such as friction, heat dissipation and many other mechanical behaviors are just very different at this scale - everything is constantly moving (under kinetic energy supplied by the heat of the surroundings) and being buffeted by other atoms and molecules (Brownian motion). The concept of a single DNA molecule nanometer was already introduced in early 2002. (124) DNA nanometers are synthetic biochemical devices whose motion can be controlled at the molecular scale. DNA molecular motors will be indispensable parts for the construction of molecular robots. The motion of a robot should be well-controlled by means of some molecular input, or it should be driven autonomously by cues from the environment. First approaches to encode molecular motion in DNA structures were based on the reversible and input-sensitive conformational changes. For example, the first reported use of a DNA motor was a nanomechanical device wh ich generated twisting motion along the helix axis based on 8-Z transition controlled by ionic strength of a solution. (125) Then, the first molecular tweezers were driven by successive reversible branch migrations of DNA strands, and these strands were called "fuel" and "anti-fuel." (126) The next level in complexity were "remotely controlled" walkers introduced by Seeman and Pierce, as they were based on a series of successive unidirectional conformational changes driven by strand displacement. These sequential conformationa l changes were microscopic analogs of macroscopic commands such as: "lift the first leg", "drop the first leg to the next available position"; "lift the second leg", "drop the second leg to the next available position", with a cumulative result of a translational movement of a molecule along a track. One drawback of these systems was that they were not autonomous, and that each conformational change had to be triggered separately, while one advantage was that they could have been monitored easily in bulk with fluorescence measurements. The first autonomous systems were based on nucleic acid UNCLASSIFIED//EOA: OFFICil.t.k YSf 8HtY 41
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Official release, from the pursue collection. The PDF is mirrored here; the original link is above. 54 pages are in the text index: search them above, or from the library's search.