Direct two-impulse transfers from a low-earth orbit to high circular polar orbits around the moon

2019 ◽  
Author(s):  
A. Tselousova ◽  
M. Shirobokov ◽  
S. Trofimov
Keyword(s):  

Subject Space stations. Significance As Washington returns its sights to the moon, it is reforming its policies regarding the International Space Station (ISS) with a view to jump-starting a 'low-earth orbit economy' in which private firms offer services to corporate clients, foreign governments and wealthy individuals. Impacts China's space station, due for completion in 2022, could draw third-country projects away from commercial US space stations. Governments are more promising clients for commercial crewed spaceflight than 'space tourists' are. Commercial stations and passenger spacecraft could make human spaceflight accessible to allied states. Spaceflight will remain politicised.


2018 ◽  
Vol 20 (1) ◽  
pp. 3
Author(s):  
Osamu Odawara

Space technology has been developed for frontier exploration not only in low-earth orbit environment but also beyond the earth orbit to the Moon and Mars, where material resources might be strongly restricted and almost impossible to be resupplied from the earth for distant and long-term missions performance toward “long-stays of humans in space”. For performing such long-term space explorations, none would be enough to develop technologies with resources only from the earth; it should be required to utilize resources on other places with different nature of the earth, i.e., in-situ resource utilization. One of important challenges of lunar in-situ resource utilization is thermal control of spacecraft on lunar surface for long-lunar durations. Such thermal control under “long-term field operation” would be solved by “thermal wadis” studied as a part of sustainable researches on overnight survivals such as lunar-night. The resources such as metal oxides that exist on planets or satellites could be refined, and utilized as a supply of heat energy, where combustion synthesis can stand as a hopeful technology for such requirements. The combustion synthesis technology is mainly characterized with generation of high-temperature, spontaneous propagation of reaction, rapid synthesis and high operability under various influences with centrifugal-force, low-gravity and high vacuum. These concepts, technologies and hardware would be applicable to both the Moon and Mars, and these capabilities might achieve the maximum benefits of in-situ resource utilization with the aid of combustion synthesis applications. The present paper mainly concerns the combustion synthesis technologies for sustainable lunar overnight survivals by focusing on “potential precursor synthesis and formation”, “in-situ resource utilization in extreme environments” and “exergy loss minimization with efficient energy conversion”.


2020 ◽  
Vol 01 (02) ◽  

Numerous attempts to reduce the cost of launching a satellite into low Earth orbit (LEO) were undertaken in many countries and characterize the current trend to make space projects economically viable and less costly. This is necessary for the progress of the development of our earthly civilization, its evolution according to the plans of the outstanding Russian thinker, the founder of cosmonautics Konstantin E. Tsiolkovsky. Mastering of the Moon and Mars are the necessary steps in the cosmic evolution of earthlings. Unfortunately, this process has not led presently to a sharp decrease in the specific launch cost. The concepts of such task solving are considered in this paper.


2021 ◽  
Vol 19 (73-74) ◽  
Author(s):  
Veaceslav Ursaki ◽  

In relation with the 60th anniversary of the first flight of humans to the space, a retrospective is presented in this paper concerning the development of spatial technologies, starting from the first theoretical concepts of the rocket science and ending with the today's projects of launching humans to other planets. In particular, the competition between the USA and USSR for the first space flight and the human flight to the Moon are analyzed. The technical characteristics of rockets for placing payloads on the low earth orbit and beyond as well as those of the rocket-spaceship systems are discussed.


2012 ◽  
Vol 74 (1) ◽  
pp. 103-110 ◽  
Author(s):  
Jean-Pierre de Vera ◽  
Ute Boettger ◽  
Rosa de la Torre Noetzel ◽  
Francisco J Sánchez ◽  
Dana Grunow ◽  
...  

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