Results 21 to 30 of about 50 (50)
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On Methods of Detection of Extraterrestrial Life
1976New methods have been developed for detecting microbial growth from the microflora of desert soils. The first is a polarimetric method in which the fall in optical activity due to assimilation of D-glucose is followed. Detectable changes with desert soils were seen in a few hours, and the method can be employed with small amounts of material.
A A, Imshenetsky +2 more
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The Search for Extraterrestrial Life
2003Looking at the nature, origin, and evolution of life on Earth is one way of assessing whether extraterrestrial life exists on Earth-like planets elsewhere (see Chaps. 5 and 6). A more direct approach is to search for favorable conditions and traces of life on other celestial bodies, both in the solar system and beyond.
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Searching for Extraterrestrial Life
2004The search for life outside the Earth is currently stuck in the same debate that once surrounded the quest for other planetary systems. Excellent scientists support a spectrum of views ranging from a strong sense that life is such an improbable state of matter that life on Earth is probably all the life there is, through grudging admission that there ...
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Homes for Extraterrestrial Life
Annals of the New York Academy of Sciences, 2001Abstract: Astronomers are now discovering giant planets orbiting other stars like the sun by the dozens. But none of these appears to be a small rocky planet like the earth, and thus these planets are unlikely to be capable of supporting life as we know it. The recent discovery of a system of three planets is especially significant because it supports
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Martian channels and the search for extraterrestrial life
Journal of Molecular Evolution, 1979The origin of the channels on Mars has been a subject of intense interest since they were first recognized on early Mariner 9 images (Driscoll, 1972; Masursky, 1973). Their presence on the planet, and their striking resemblance to terrestrial flood channels related to glacial outbursts or to dendritic river systems has suggested to most investigators ...
Harold Masursky +2 more
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Ethics and extraterrestrial life
2011The study of other planets and moons in the Solar System has revealed the presence of environments that may be conducive to life. The discovery of sulphate- bearing rocks on Mars,201 and the suggestion that they were formed in bodies of standing water,has invigorated the debate on the subject of the past,or even present,existence of life on Mars.
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Bioastronomy — Search for Extraterrestrial Life
1988The past three years have seen not only a growth in the activities of our commission, but an extension of its activities into important areas which have heretofore motivated too little activity. Of particular interest have been the many activities directed towards elucidating the question of the abundance of extrasolar planetary systems.
P. Feldman +11 more
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Search for Extraterrestrial Life
1985The possibility that life, primitive or advanced, might exist in other places of the Universe has occupied the minds of scientists and lay-people for thousands of years. It is only in the last 25 years, however, that we have finally begun to search for answers to this profound question using experimental techniques.
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2018
An overheard (fictional) conversation between a terrestrial speaker and a representative alien from some other planet orbiting some other star. The conversation touches on moral and spiritual issues. The main aim is to make the attempt not to be parochial.
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An overheard (fictional) conversation between a terrestrial speaker and a representative alien from some other planet orbiting some other star. The conversation touches on moral and spiritual issues. The main aim is to make the attempt not to be parochial.
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The Search for Extraterrestrial Intelligent Life
2018The Search for Extraterrestrial Intelligence, or SETI, has traditionally been conducted and coordinated by the SETI Institute, based in Mountain View, California (USA). The SETI institute is a non-profit organization, which carries out not only research associated with possible extraterrestrial intelligent life, but also research related to planetary ...
Dirk Schulze-Makuch, Louis N. Irwin
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