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METEORITIC HYDROCARBONS AND EXTRATERRESTRIAL LIFE*

Annals of the New York Academy of Sciences, 1962
A critical discussion is given of the comparison by Nagy Meinschein, and Hennessy of the mass spectra of the hydrocarbons from the distillate of the Orgueil meteorite with the mass spectra of two biogenic materials, butter and sediments. The conclusion of Nagy et al.
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On Methods of Detection of Extraterrestrial Life

1976
New 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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Martian channels and the search for extraterrestrial life

Journal of Molecular Evolution, 1979
The 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

2011
The 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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The Search for Extraterrestrial Life

2003
Looking 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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Homes for Extraterrestrial Life

Annals of the New York Academy of Sciences, 2001
Abstract: 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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Fluorescence microscope as a core instrument for extraterrestrial life detection methods

Optical Engineering + Applications, 2021
K. Enya   +3 more
semanticscholar   +1 more source

The drake equation : estimating the prevalence of extraterrestrial life through the ages

, 2015
List of contributors Foreword Frank Drake Preface Acknowledgements Introduction Steven Dick 1. Rate of formation of stars suitable for the development of intelligent life, R*, pre-1961 David DeVorkin 2.
D. Vakoch, Matthew F. Dowd
semanticscholar   +1 more source

Bioastronomy — Search for Extraterrestrial Life

1988
The 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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Searching for Extraterrestrial Life

2004
The 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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