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Is Human Spaceflight Now Obsolete?
Science, 2004During the past year, there have been painstaking, and painful, investigations of the tragic loss of the space shuttle Columbia and its seven crew members. Congressional committees are now scrutinizing the competence of the investigators and reviewing perceived managerial and budgetary shortcomings of NASA.
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2013
Over a period of about two centuries humans learned how to travel farther and farther from the surface of the Earth. However, we still have limited experience of flight in space. Progress was fast during the Cold War, when the competitive spirit between the United States and the Soviet Union drove both nations’ space engineers to work towards goals of ...
Carol Norberg, Sven Grahn
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Over a period of about two centuries humans learned how to travel farther and farther from the surface of the Earth. However, we still have limited experience of flight in space. Progress was fast during the Cold War, when the competitive spirit between the United States and the Soviet Union drove both nations’ space engineers to work towards goals of ...
Carol Norberg, Sven Grahn
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A Plea for Further Human Spaceflight [PDF]
Science, 2004 James Van Allen (“Is human spaceflight now obsolete?,” Letters, 7 May, p. [822][1]) asks the proponents of human spaceflight not to “obfuscate the issues with false analogies to Christopher Columbus” or other explorers of similar caliber.
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Endocrine relationships during human spaceflight
American Journal of Physiology-Endocrinology and Metabolism, 1999Human spaceflight is associated with a chronic loss of protein from muscle. The objective of this study was to determine whether changes in urinary hormone excretion could identify a hormonal role for this loss. Urine samples were collected from the crews of two Life Sciences Space Shuttle missions before and during spaceflight.
M. D. Schluter +2 more
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Seeking justifications for human spaceflight
Space Policy, 1994Abstract Traditionally cited benefits such as scientific and economic progress or political advantages have been widely recognized as insufficient to justify ongoing and future human spaceflight programmes in today's prevailing geopolitical and socioeconomic environment.
Jens Fromm, Hartmut Sax, Armin Grunwald
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Human spaceflight: science or spectacle?
Physics World, 2009On 20 July 1969 NASA's Apollo11 mission landed on the surface of the Moon. Apollo was done, to paraphrase US President John F Kennedy, because it was hard, and human spaceflight still remains very hard. Indeed, since the sixth and final Apollo lunar landing in December 1972, all of human spaceflight has been constrained to low Earth orbit – just a few ...
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Spaceflight induced changes in the human proteome
Expert Review of Proteomics, 2016Spaceflight is one of the most extreme conditions encountered by humans: Individuals are exposed to radiation, microgravity, hypodynamia, and will experience isolation. A better understanding of the molecular processes induced by these factors may allow us to develop personalized countermeasures to minimize risks to astronauts.
Irina M. Larina +8 more
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The Effects of Prolonged Spaceflights on the Human Body
Advances in Space Biology and Medicine, 1991Publisher Summary Results of medical investigations of long-term missions have shown that humans can adequately adapt and efficiently work in space for as long as a year. In the past, good health condition and adequate performance during extended space missions were enhanced by various measures: countermeasures against the adverse effects of ...
Anatolyi I. Grigoriev +1 more
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Human Spaceflight and Exploration
2013History of Human Spaceflight.- Space Exploration.- The effects of spaceflight on the human body and mind.- Life support systems.- Space suits.- Astronaut selection and training.- Mapping our world, the flight of European astronaut Gerhard Thiele on STS-99.
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Longevity of the Human Spaceflight Program
AIP Conference Proceedings, 2007The longevity of the human spaceflight program is important to our survival prospects. On May 27, 1993 I proposed a method for estimating future longevity, based on past observed longevity using the Copernican Principle: if your observation point is not special the 95% confidence level prediction of future longevity is between (1/39)th and 39 times the
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