Use of Nuclear Power Sources in Outer Space. Predicting Satellite Re-entry
Author : Great Britain
Publisher :
Page : 2 pages
File Size : 47,85 MB
Release : 1979
Category :
ISBN :
Author : Great Britain
Publisher :
Page : 2 pages
File Size : 47,85 MB
Release : 1979
Category :
ISBN :
Author :
Publisher :
Page : 14 pages
File Size : 35,82 MB
Release : 1980
Category :
ISBN :
Author : United Nations. General Assembly. Committee on the Peaceful Uses of Outer Space. Scientific and Technical Subcommittee
Publisher :
Page : 60 pages
File Size : 12,22 MB
Release : 1999
Category : Science
ISBN :
Author : Canada
Publisher :
Page : 4 pages
File Size : 50,40 MB
Release : 1990
Category :
ISBN :
Author : National Research Council
Publisher : National Academies Press
Page : 178 pages
File Size : 19,86 MB
Release : 2011-12-16
Category : Science
ISBN : 0309219744
Derelict satellites, equipment and other debris orbiting Earth (aka space junk) have been accumulating for many decades and could damage or even possibly destroy satellites and human spacecraft if they collide. During the past 50 years, various National Aeronautics and Space Administration (NASA) communities have contributed significantly to maturing meteoroid and orbital debris (MMOD) programs to their current state. Satellites have been redesigned to protect critical components from MMOD damage by moving critical components from exterior surfaces to deep inside a satellite's structure. Orbits are monitored and altered to minimize the risk of collision with tracked orbital debris. MMOD shielding added to the International Space Station (ISS) protects critical components and astronauts from potentially catastrophic damage that might result from smaller, untracked debris and meteoroid impacts. Limiting Future Collision Risk to Spacecraft: An Assessment of NASA's Meteoroid and Orbital Debris Program examines NASA's efforts to understand the meteoroid and orbital debris environment, identifies what NASA is and is not doing to mitigate the risks posed by this threat, and makes recommendations as to how they can improve their programs. While the report identified many positive aspects of NASA's MMOD programs and efforts including responsible use of resources, it recommends that the agency develop a formal strategic plan that provides the basis for prioritizing the allocation of funds and effort over various MMOD program needs. Other necessary steps include improvements in long-term modeling, better measurements, more regular updates of the debris environmental models, and other actions to better characterize the long-term evolution of the debris environment.
Author : Michael K Simpson
Publisher :
Page : 158 pages
File Size : 25,23 MB
Release : 2017-01-25
Category : Astronautics
ISBN : 9780692851418
The Secure World Foundation developed the Handbook for New Actors in Space, which is intended to provide nations, established satellite operators, start-up companies, universities, and other space actors with a broad overview of the fundamental principles, laws, norms, and best practices for peaceful, safe, and responsible activities in space.
Author : David Wright
Publisher :
Page : 198 pages
File Size : 34,65 MB
Release : 2005
Category : Artificial satellites
ISBN :
Author : Stockholm International Peace Research Institute
Publisher : Routledge
Page : 493 pages
File Size : 40,87 MB
Release : 2020-11-19
Category : History
ISBN : 100019924X
In mid-1980 a second conference for the review of the Non-Proliferation Treaty (NPT) would take place in Geneva. Given the importance of preventing, or at least slowing down, nuclear weapon proliferation, this conference would be a crucial event in the field of arms control and disarmament. For many countries the technical and economic barriers to proliferation had disappeared, and the only remaining barriers were political. In an attempt to contribute to the discussions at the NPT Review Conference, SIPRI assembled a group of experts from a number of countries to discuss the technical aspects of the control of fissionable materials in non-military applications. The meeting took place in Stockholm, 12-16 October 1978. Originally published in 1979, this book on nuclear energy and nuclear weapon proliferation contains the papers presented at the symposium and reflects the discussions at the meeting.
Author : National Research Council
Publisher : National Academies Press
Page : 68 pages
File Size : 14,72 MB
Release : 2009-08-14
Category : Science
ISBN : 0309138574
Spacecraft require electrical energy. This energy must be available in the outer reaches of the solar system where sunlight is very faint. It must be available through lunar nights that last for 14 days, through long periods of dark and cold at the higher latitudes on Mars, and in high-radiation fields such as those around Jupiter. Radioisotope power systems (RPSs) are the only available power source that can operate unconstrained in these environments for the long periods of time needed to accomplish many missions, and plutonium-238 (238Pu) is the only practical isotope for fueling them. Plutonium-238 does not occur in nature. The committee does not believe that there is any additional 238Pu (or any operational 238Pu production facilities) available anywhere in the world.The total amount of 238Pu available for NASA is fixed, and essentially all of it is already dedicated to support several pending missions-the Mars Science Laboratory, Discovery 12, the Outer Planets Flagship 1 (OPF 1), and (perhaps) a small number of additional missions with a very small demand for 238Pu. If the status quo persists, the United States will not be able to provide RPSs for any subsequent missions.
Author : National Research Council
Publisher : National Academies Press
Page : 225 pages
File Size : 11,54 MB
Release : 1995-07-07
Category : Science
ISBN : 0309051258
Since the beginning of space flight, the collision hazard in Earth orbit has increased as the number of artificial objects orbiting the Earth has grown. Spacecraft performing communications, navigation, scientific, and other missions now share Earth orbit with spent rocket bodies, nonfunctional spacecraft, fragments from spacecraft breakups, and other debris created as a byproduct of space operations. Orbital Debris examines the methods we can use to characterize orbital debris, estimates the magnitude of the debris population, and assesses the hazard that this population poses to spacecraft. Potential methods to protect spacecraft are explored. The report also takes a close look at the projected future growth in the debris population and evaluates approaches to reducing that growth. Orbital Debris offers clear recommendations for targeted research on the debris population, for methods to improve the protection of spacecraft, on methods to reduce the creation of debris in the future, and much more.