In human spaceflight, a life support system is a group of devices that allow a human being to survive in space. US government space agency NASA, and private spaceflight companies use the term environmental control and life support system or the acronym ECLSS when describing these systems for their human spaceflight missions. The life support system may supply air, water and food. It must also maintain the correct body temperature, an acceptable pressure on the body and deal with the body's waste products. Shielding against harmful external influences such as radiation and micro-meteorites may also be necessary. Components of the life support system are life-critical, and are designed and constructed using safety engineering techniques.
Read more about Life Support System: Human Physiological and Metabolic Needs, Atmosphere, Water, Food, Microbe Detection and Control, EVA Systems, Natural Systems
Famous quotes containing the words life, support and/or system:
“The Constitution of the United States is not a mere lawyers’ document. It is a vehicle of life, and its spirit is always the spirit of the age. Its prescriptions are clear and we know what they are ... but life is always your last and most authoritative critic.”
—Woodrow Wilson (1856–1924)
“A clergyman, again, can hardly ever allow himself to look facts fairly in the face. It is his profession to support one side; it is impossible, therefore, for him to make an unbiased examination of the other.”
—Samuel Butler (1835–1902)
“Predatory capitalism created a complex industrial system and an advanced technology; it permitted a considerable extension of democratic practice and fostered certain liberal values, but within limits that are now being pressed and must be overcome. It is not a fit system for the mid- twentieth century.”
—Noam Chomsky (b. 1928)