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Ultimate astronomicalimaging
This document discusses the potential for x-ray interferometry and the Maxim Pathfinder mission concept. It describes how an x-ray interferometer could achieve much higher resolution than current x-ray telescopes by using multiple collector spacecraft separated by long distances. The Maxim Pathfinder would demonstrate 100 microarcsecond resolution using two spacecraft separated by 450 km. System modeling tools would be crucial for development and optimization of the interferometer design.
Ultra highxray
This document discusses a proposed new mission architecture for an Ultra High Throughput X-ray Observatory. The key aspects of the proposed architecture are:
1) A 30 meter diameter X-ray telescope would be constructed incrementally at L2 using remotely assembled segments delivered by separate launches.
2) Detector spacecraft would also launch independently and rendezvous with the telescope using formation flying to maintain precision at the focal point.
3) This distributed approach aims to achieve higher throughput than current observatories by allowing unlimited detectors that can be replaced, while also enabling incremental construction and collaboration.
The major technological challenges involve constructing the large segmented telescope remotely, precision formation flying, and developing new electric propulsion systems suitable for
Recomendados
Ultimate astronomicalimaging
This document discusses the potential for x-ray interferometry and the Maxim Pathfinder mission concept. It describes how an x-ray interferometer could achieve much higher resolution than current x-ray telescopes by using multiple collector spacecraft separated by long distances. The Maxim Pathfinder would demonstrate 100 microarcsecond resolution using two spacecraft separated by 450 km. System modeling tools would be crucial for development and optimization of the interferometer design.
Ultra highxray
This document discusses a proposed new mission architecture for an Ultra High Throughput X-ray Observatory. The key aspects of the proposed architecture are:
1) A 30 meter diameter X-ray telescope would be constructed incrementally at L2 using remotely assembled segments delivered by separate launches.
2) Detector spacecraft would also launch independently and rendezvous with the telescope using formation flying to maintain precision at the focal point.
3) This distributed approach aims to achieve higher throughput than current observatories by allowing unlimited detectors that can be replaced, while also enabling incremental construction and collaboration.
The major technological challenges involve constructing the large segmented telescope remotely, precision formation flying, and developing new electric propulsion systems suitable for
Ultrafast laserdrivenplasmajun02
The document describes the results of an experiment using a Laser-Accelerated Plasma Propulsion System (LAPPS) for spacecraft propulsion. A 1 kJ, 1 μm wavelength laser beam was focused on a 125 μm thick gold foil, generating a proton beam with maximum and average energies of 58 MeV and 5.3 MeV respectively. This proton beam was able to generate a thrust of 1.83x10-2 N when accelerated through 17 GeV/cm electric fields, demonstrating the potential of LAPPS technology for spacecraft propulsion with specific impulses up to 5x106 and repetition rates up to 1000 Hz.
Zubrin nov99
The document discusses the design of magnetic sail (magsail) systems for spacecraft propulsion. It describes a proposed demonstrator magsail with a 200m radius and 25.7kg mass, and an operational magsail with 20,000m radius and 7,060 metric tonne mass. The operational design could accelerate at 0.003185 m/s^2 and deliver over 100,000kg payloads to Mars or Saturn. Future advances in superconductors could enable magsails to deliver payloads of over 400,000kg to Jupiter and millions of kilograms to the outer planets.
Xray telescopeconcept
I. X-ray astronomy will play an increasingly important role in studies of the early universe and large scale structure, but these studies are ultimately limited by sparse photon numbers. There is a need to develop progressively larger collecting area telescopes under increasingly severe mass constraints.
II. The challenge is greater in the X-ray band than optical, as X-ray telescopes reflect X-rays twice, requiring reflectors two orders of magnitude larger than the effective aperture. Large mass is currently problematic for Constellation-X mission.
III. Looking beyond Constellation, a radically different approach is needed based on super lightweight reflectors and perhaps in situ assembly of the telescope. This could enable an ultra high throughput X-
Xray interferometry
This document discusses the concept of an X-ray interferometer called MAXIM that could achieve micro-arcsecond resolution. It would consist of an optics spacecraft holding multiple flat mirrors in formation with a detector spacecraft to form interference patterns. The goal is to image phenomena like black hole accretion disks and supernovae with much higher resolution than current telescopes. A pathfinder mission is proposed with 100 microarcsecond resolution using two spacecraft separated by 1.4 meters as a technology demonstration.
What gov knows_about_ufos
USAF intercepted a report of a Cuban pilot's encounter with a UFO. In the 1970s, reliable military personnel sighted unidentified aerial objects near nuclear weapons facilities. Though the Air Force said these were isolated incidents, an Air Force document revealed they implemented increased security measures. Newly declassified documents from the CIA, FBI and other agencies indicate unidentified flying objects exist and some pose a threat to national security by demonstrating technologies beyond present human capability. However, the government has misled the public about the true nature and implications of the UFO phenomenon.
Welcome oct02
This document summarizes the agenda for the NIAC Phase I Fellows Meeting held on October 23-24, 2002. It provides an overview of the presentations and speakers, including status reports on various advanced aerospace concepts from NIAC fellows, as well as keynote speeches from experts in the fields of aerial robotics and the search for extraterrestrial intelligence.
Weather jun02
The document discusses the possibility of controlling global weather through small, precise perturbations to the atmosphere. It describes how the chaotic nature of the atmosphere implies sensitivity to small changes and suggests a series of small perturbations may control weather evolution. It outlines components a global weather control system may have, including advanced numerical weather prediction, satellite sensing, and methods to introduce perturbations. It also presents an experiment using data assimilation to calculate perturbations needed to slightly alter a hurricane's track as a proof of concept.
Wassersug richard[1]
The document discusses observations of various amphibian and reptile species' behavior in microgravity during a flight experiment. It was found that none of the animals vomited, possibly because they did not eat before the flight or because amphibians and reptiles have a weaker vomiting response than mammals. Different species reacted variably based on their ecology and phylogeny. Flexible limbed lizards tended to roll more, while geckos commonly displayed a "skydiving posture" related to their arboreal ancestry. Overall reactions to microgravity varied significantly between species based on both ecology and evolutionary history.
Washington, d.c., jul 26 27, 1952
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise has also been shown to boost self-esteem and can serve as a healthy way to manage stress.
Vol4ch03
This document describes an operational analysis conducted as part of the Air Force 2025 study to identify
high-value future air and space system concepts and their enabling technologies. A value model called
Foundations 2025 was developed to quantify and compare different system concepts. Various futuristic
systems and technologies were identified, described, and scored using the model. The analysis determined
the most valuable system concepts and technologies that could enhance future air and space capabilities.
Vol4ch02
This document discusses a research paper presented to Air Force 2025 that argues the US Air Force should transition from being an atmospheric force to an infospheric force focused on controlling information and the battlespace. It proposes three new missions for the Air Force in the 21st century: extended information dominance to empower allies, global transparency to deter potential adversaries, and strategic defense. The paper advocates for the Air Force to develop a "metasystem" to integrate information and capabilities from all services and envisions the Air Force guiding the development and maintenance of this system.
Vol4ch01
This document summarizes potential paths to the extinction of the US Air Force by 2025. Externally, extinction could occur through the ascendancy of other military services, economic constraints, changes in strategic environment/policy, technological changes, or the rise of jointness. Internally, extinction could result from losing its vision/mission, mismanaging people/programs, choosing wrong future paths, being too effective at strategic war, or failing to adapt. The document argues the USAF risks becoming extinct unless it reverses trends threatening its viability and ability to evolve appropriately on external and internal challenges.
Vol3ch16
This document presents a research paper on Planetary Defense, which proposes establishing a system to protect Earth from catastrophic impacts by asteroids and comets. It discusses the threat posed by near-Earth objects, the social, economic and political implications of impacts, and recommends developing a three-tiered Planetary Defense System. The system would include detection subsystems to find threats, command and control systems, and mitigation subsystems to deflect objects, including kinetic impactors, mass drivers, solar sails and nuclear devices. It argues such a system could help ensure humanity's survival and have dual-use benefits from related technologies.
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Destaque
Ultrafast laserdrivenplasmajun02
The document describes the results of an experiment using a Laser-Accelerated Plasma Propulsion System (LAPPS) for spacecraft propulsion. A 1 kJ, 1 μm wavelength laser beam was focused on a 125 μm thick gold foil, generating a proton beam with maximum and average energies of 58 MeV and 5.3 MeV respectively. This proton beam was able to generate a thrust of 1.83x10-2 N when accelerated through 17 GeV/cm electric fields, demonstrating the potential of LAPPS technology for spacecraft propulsion with specific impulses up to 5x106 and repetition rates up to 1000 Hz.
Mais de Clifford Stone
Zubrin nov99
The document discusses the design of magnetic sail (magsail) systems for spacecraft propulsion. It describes a proposed demonstrator magsail with a 200m radius and 25.7kg mass, and an operational magsail with 20,000m radius and 7,060 metric tonne mass. The operational design could accelerate at 0.003185 m/s^2 and deliver over 100,000kg payloads to Mars or Saturn. Future advances in superconductors could enable magsails to deliver payloads of over 400,000kg to Jupiter and millions of kilograms to the outer planets.
Xray telescopeconcept
I. X-ray astronomy will play an increasingly important role in studies of the early universe and large scale structure, but these studies are ultimately limited by sparse photon numbers. There is a need to develop progressively larger collecting area telescopes under increasingly severe mass constraints.
II. The challenge is greater in the X-ray band than optical, as X-ray telescopes reflect X-rays twice, requiring reflectors two orders of magnitude larger than the effective aperture. Large mass is currently problematic for Constellation-X mission.
III. Looking beyond Constellation, a radically different approach is needed based on super lightweight reflectors and perhaps in situ assembly of the telescope. This could enable an ultra high throughput X-
Xray interferometry
This document discusses the concept of an X-ray interferometer called MAXIM that could achieve micro-arcsecond resolution. It would consist of an optics spacecraft holding multiple flat mirrors in formation with a detector spacecraft to form interference patterns. The goal is to image phenomena like black hole accretion disks and supernovae with much higher resolution than current telescopes. A pathfinder mission is proposed with 100 microarcsecond resolution using two spacecraft separated by 1.4 meters as a technology demonstration.
What gov knows_about_ufos
USAF intercepted a report of a Cuban pilot's encounter with a UFO. In the 1970s, reliable military personnel sighted unidentified aerial objects near nuclear weapons facilities. Though the Air Force said these were isolated incidents, an Air Force document revealed they implemented increased security measures. Newly declassified documents from the CIA, FBI and other agencies indicate unidentified flying objects exist and some pose a threat to national security by demonstrating technologies beyond present human capability. However, the government has misled the public about the true nature and implications of the UFO phenomenon.
Welcome oct02
This document summarizes the agenda for the NIAC Phase I Fellows Meeting held on October 23-24, 2002. It provides an overview of the presentations and speakers, including status reports on various advanced aerospace concepts from NIAC fellows, as well as keynote speeches from experts in the fields of aerial robotics and the search for extraterrestrial intelligence.
Weather jun02
The document discusses the possibility of controlling global weather through small, precise perturbations to the atmosphere. It describes how the chaotic nature of the atmosphere implies sensitivity to small changes and suggests a series of small perturbations may control weather evolution. It outlines components a global weather control system may have, including advanced numerical weather prediction, satellite sensing, and methods to introduce perturbations. It also presents an experiment using data assimilation to calculate perturbations needed to slightly alter a hurricane's track as a proof of concept.
Wassersug richard[1]
The document discusses observations of various amphibian and reptile species' behavior in microgravity during a flight experiment. It was found that none of the animals vomited, possibly because they did not eat before the flight or because amphibians and reptiles have a weaker vomiting response than mammals. Different species reacted variably based on their ecology and phylogeny. Flexible limbed lizards tended to roll more, while geckos commonly displayed a "skydiving posture" related to their arboreal ancestry. Overall reactions to microgravity varied significantly between species based on both ecology and evolutionary history.
Washington, d.c., jul 26 27, 1952
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise has also been shown to boost self-esteem and can serve as a healthy way to manage stress.
Vol4ch03
This document describes an operational analysis conducted as part of the Air Force 2025 study to identify
high-value future air and space system concepts and their enabling technologies. A value model called
Foundations 2025 was developed to quantify and compare different system concepts. Various futuristic
systems and technologies were identified, described, and scored using the model. The analysis determined
the most valuable system concepts and technologies that could enhance future air and space capabilities.
Vol4ch02
This document discusses a research paper presented to Air Force 2025 that argues the US Air Force should transition from being an atmospheric force to an infospheric force focused on controlling information and the battlespace. It proposes three new missions for the Air Force in the 21st century: extended information dominance to empower allies, global transparency to deter potential adversaries, and strategic defense. The paper advocates for the Air Force to develop a "metasystem" to integrate information and capabilities from all services and envisions the Air Force guiding the development and maintenance of this system.
Vol4ch01
This document summarizes potential paths to the extinction of the US Air Force by 2025. Externally, extinction could occur through the ascendancy of other military services, economic constraints, changes in strategic environment/policy, technological changes, or the rise of jointness. Internally, extinction could result from losing its vision/mission, mismanaging people/programs, choosing wrong future paths, being too effective at strategic war, or failing to adapt. The document argues the USAF risks becoming extinct unless it reverses trends threatening its viability and ability to evolve appropriately on external and internal challenges.
Vol3ch16
This document presents a research paper on Planetary Defense, which proposes establishing a system to protect Earth from catastrophic impacts by asteroids and comets. It discusses the threat posed by near-Earth objects, the social, economic and political implications of impacts, and recommends developing a three-tiered Planetary Defense System. The system would include detection subsystems to find threats, command and control systems, and mitigation subsystems to deflect objects, including kinetic impactors, mass drivers, solar sails and nuclear devices. It argues such a system could help ensure humanity's survival and have dual-use benefits from related technologies.
Vol3ch14
This document presents a research paper on space operations and a potential future system called the Global Area Strike System (GASS). It discusses issues around space operations in 2025, including manned vs unmanned systems and military vs cooperative operations. It then outlines the required capabilities for GASS, including timeliness, responsiveness, flexibility, and precision. It proposes an integrated system-of-systems for GASS using various weapon platforms and classes, including directed energy weapons, projectile weapons, and a transatmospheric vehicle. It concludes with concept of operations and recommendations.
Vol3ch13
This document provides a historical overview of unmanned aerial vehicles (UAVs) and their use by various militaries. It discusses early UAV development in the 1950s-1960s for reconnaissance and weapons delivery missions. During the Vietnam War, UAVs conducted thousands of reconnaissance missions with a high recovery rate. Experimental armed UAVs were also tested. Later, UAVs were used effectively by Israel in the 1970s-1980s and by the US during the Gulf War for reconnaissance. Following the Gulf War, the US began developing longer endurance UAVs like the Predator and Global Hawk to address reconnaissance needs. The document suggests expanding UAVs' role beyond reconnaissance to include lethal strike missions.
Vol3ch12
This document proposes an integrated hypersonic weapons platform called the S3 concept to fulfill three broad missions for US air and space forces in 2025: deliver decisive early blows, provide cost-effective in-theater dominance, and maintain access to space. The S3 concept involves three vehicles: the SHAAFT hypersonic attack aircraft, the SHMAC standoff hypersonic missile, and the SCREMAR reusable spaceplane. The SHAAFT would use a zero-stage flying wing to stage to Mach 3.5 and then cruise at Mach 12, able to launch the SHMAC missile or SCREMAR spaceplane. Together these vehicles aim to provide global reach, in-theater dominance, and access to space with
Vol3ch11
This document summarizes a research paper presented to Air Force 2025 that outlines special operations forces capabilities needed to conduct precision operations against weapons of mass destruction, high-value targets, and assets in the hypothetical world of 2025. The paper identifies communications, mobility, and destruction/neutralization as the top three enabling capabilities required for these missions. It then proposes various futuristic technologies that could fulfill requirements for these capabilities by 2025, such as stealth airlifters, extraction rockets, and targeting systems, to allow special operations forces to accomplish their missions with zero tolerance for error.
Vol3ch10
This document proposes a concept for Special Operations Regional Engagement (SORE) forces in 2025. The core capability of SORE forces would be engaging in less developed, first- and second-wave nations while not disrupting their evolution. SORE forces would exploit third-wave technology to operate effectively in these environments without introducing advanced technology prematurely. The proposed concept of operations involves SORE forces conducting defensive and offensive operations like training, advising, and assisting host nations. To enable these operations, the document outlines key tasks for SORE forces including recruitment, training, observation, communication, decision-making, countermeasures, and sustainment. It argues that SORE forces will need systems and technologies to complete these tasks while
Vol3ch09
This document proposes concepts and technologies for counterspace operations in 2025, including space detection, anti-satellite weapons, space interdiction nets, miniaturized satellites, satellite cloaking, kinetic and directed energy weapons. It outlines offensive and defensive counterspace architectures and recommends further analysis of miniaturization, stealth, detection and targeting concepts as well as kinetic and directed energy weapons. The goal is to maintain US space superiority as space becomes increasingly vital to national security and more countries and commercial entities access space.