scholarly journals Manned space travel: from a race between nations to a race against the environmental stressors beyond earth

2021 ◽  
Vol 39 (2) ◽  
pp. 109-112
Author(s):  
Marjan Boerma ◽  
Igor Koturbash
2006 ◽  
Vol 4 (4) ◽  
pp. 239-252 ◽  
Author(s):  
Carl Friedrich Gethmann
Keyword(s):  

2020 ◽  
Vol 324 ◽  
pp. 02001
Author(s):  
Leon P. M. Brendel ◽  
James E. Braun ◽  
Eckhard A. Groll

The literature shows five decades of interest in vapor compression cooling for spacecraft, while only very few conclusions can be drawn because of either non-systematic approaches or sparsely documented experiments. In contrast, the demand for high COP refrigerators and freezers has increased with the emerging plans of long duration manned space travel. Research is needed exploiting all available testing approaches to investigate two-phase cycles in microgravity environments. This paper presents relevant testing possibilities with their characteristics and outlines open questions regarding vapor compression cycles in space. Beneficial experiments are derived from open questions and matched with available testing methods to prescribe a path towards reliable and efficient refrigeration systems in microgravity.


2020 ◽  
Vol 1 (1) ◽  
Author(s):  
William Elke ◽  
Maia Heineck ◽  
Jonah Meffert ◽  
Ellie Monaghan ◽  
Jason Palesse

For long-duration, manned, space exploration missions to be feasible, farming techniques in space must become reliable and fruitful. The NASA Project Veggie team currently runs experiments on the International Space Station (ISS) in order to better understand how plants react to a microgravity environment. Current watering strategies on the ISS involve manual watering of all plants by the crewmembers. This poses a problem because watering plants must be scheduled into the crewmembers’ days which means less time to work, etc. The objective of Team International Space Salads (ISSa) was to create a device and prove that it could function in microgravity without electricity to autonomously water the plants in order to allow for schedule flexibility of the ISS crewmembers and to lay the foundation for watering systems for deep-space travel. The final device did not function fully as planned, however, the plant growing, surface tension experiments, and the device collectively progressed the multi-year project to a state where successive teams would have the knowledge and tools necessary to create a fully functioning device.


Transfers ◽  
2015 ◽  
Vol 5 (1) ◽  
pp. 1-4
Author(s):  
Heike Weber ◽  
Gijs Mom

The final months of 2014 have seen many critical events in respect to mobility: Apple introduced its Apple Watch, a cyborg technology that adds a novel, substantially corporeal layer to our “always on” connectedness—what Sherry Turkle has termed the “tethered self.”1 Moreover, it is said to revolutionize mobile paying systems, and it might finally implement mobile body monitoring techniques into daily life.2 Ebola is terrorizing Africa and frightening the world; its outbreak and spread is based on human mobility, and researchers are calling for better control and quantifi cation of human mobility in the affected regions to contain the disease.3 Even its initial spread from animals to humans may have had its origin in human transgressions beyond traditional habitats, by intruding into insular bush regions and using the local fruit bats as food. Due to global mobility patterns, the viral passenger switched transport modes, from animal to airplane. On the other hand, private space fl ight suff ered two serious setbacks in just one week when the Antares rocket of Orbital Sciences, with supplies for the International Space Station and satellites on board, exploded, and shortly after, SpaceShipTwo crashed over the Mojave Desert. Th ese catastrophic failures ignited wide media discussion on the challenges, dangers, and signifi cance of space mobility, its ongoing commercialization and privatization, and, in particular, plans for future manned space travel for “tourists.”4


Author(s):  
Salvatore P. Schipani ◽  
◽  
Richard S. Bruno ◽  
Michael A. Lattin ◽  
Bobby M. King ◽  
...  

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