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... propulsion system simultaneously. However by selecting appropriate features from each it is possible to synthesise a new class of engines which are specifically optimised for the SSTO role. The resulting engines ... rocket combustion chamber to be utilised in both airbreathing and rocket modes. This results in a significant mass saving with installation advantages which by careful design of the cycle thermodynamics enables ...

... Reference Code ''' - 2003.56.152 '''Number of Pages''' - 8 Abstract As a direct consequence of exposure to microgravity astronauts experience a number of physiological changes, which can have serious medical implications when ... space programmes, and has enabled humans to stay relatively healthy in space for well over a year. Although it remains the most effective countermeasure currently available, significant physiological degrada- tion still ...

... of materials concerning the USSR's space activities from a US intelligence perspective. Now, a decade on, the situation has dramatically changed. As a plethora of US government agencies labor to disgorge their ... to be read via the Internet, and with most of the documents available only recently, a new era in space history research is now in hand. This article is intended to provide a broad overview of what is now available, and mention some highlights. '''To BUY this paper ...

... ''' - 7 Abstract An interstellar navigation theory is presented according to which a spaceship could travel to the farthest stars within a human lifetime. Assuming hyperspace as being characterized by imaginary time, it ...

... clear that it follows the scientific method. Like astrobiology (also known as exobiology), it lacks a well-defined subject-matter in the form of physical evidence. However, although astrobiology is supported by a single data-set of terrestrial extremophile evidence and based upon extrapolation of physical mechanisms (life ...

... mission and the expected imagery received. The aim of the design process was to produce a practical, low-cost, small satellite mission with mainly commercial off-the-shelf components and ... . Despite difficult mass and volumetric con- straints, the Prometheus team was able to establish that a small microsatellite observation mission for NEOs appears feasible in the near-term. '''To BUY this ...

... phase that allows for the presence of 6 over-winterers and 20 summer personnel at a permanent polar station. This station will provide opportunities for scientists to investigate the geology, chemistry ... - cal poles to be accomplished. The equipment and logistics required to support field parties from a permanent Martian polar station are considered. Preliminary concepts are provided for techniques of station maintenance ...

... launcher, reusable launch vehicle '''JBIS Reference Code ''' - 2003.56.369 '''Number of Pages''' - 9 Abstract A Reusable Launch Vehicle (RLV) should be sized to minimise the specific launch costs and this ... system could be used as transition launchers for the early stages of RLV operations, with a new HLV system development following when its market is established. '''To BUY this paper click ...

... ray dosimeter deployment and we describe how sampling of paleolake deposits might be accomplished from a lander. We domonstrate that science on the surface of Mars can be accomplished from the testing of hypotheses through to the preparation of peer-reviewed manuscripts during a long-duration stay, a significant difference to merely sampling as on the Apollo expeditions. The design of ...

... et al '''Co-Author(s)''' - J. A. Jones; M. Barratt; R. Effenhauser; C. S. Cockell; P. Lee '''JBIS Volume ''' - Contents of the ... variable conditions of reduced gravity and prolonged isolation and confinement. The health maintenance program for a Mars mission will employ strategies of disease prevention, early detection, and contingency management, to mitigate ...

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