Results 81 to 90 of about 11,735 (217)

Surgery in space: The ultimate frontier

open access: yes
Experimental Physiology, EarlyView.
Mohamad Bashir   +5 more
wiley   +1 more source

Publications of the exobiology program for 1982. A special bibliography [PDF]

open access: yes
Chemical evolution, organic geochemistry, origin and evalution of life, planetary environments, life in the universe, search for extraterrestrial intelligence, and planetary protection are ...
Devincenzi, D. L., Pleasant, L. G.
core   +1 more source

Galactic Punctuated Equilibrium: How to Undermine Carter's Anthropic Argument in Astrobiology

open access: yes, 2009
We investigate a new strategy which can defeat the (in)famous Carter's "anthropic" argument against extraterrestrial life and intelligence. In contrast to those already considered by Wilson, Livio, and others, the present approach is based on relaxing ...
Annis J.   +6 more
core   +1 more source

Science of omics: a molecular space odyssey

open access: yes
Experimental Physiology, EarlyView.
Salomé Coppens   +3 more
wiley   +1 more source

Earth Detecting Earth: At What Distance Could Earth’s Constellation of Technosignatures Be Detected with Present-day Technology?

open access: yesThe Astronomical Journal
The field of Search for Extraterrestrial Intelligence (SETI) searches for “technosignatures” could provide the first detection of life beyond Earth through the technology that an extraterrestrial intelligence may have created.
Sofia Z. Sheikh   +7 more
doaj   +1 more source

Dependence of Biological Activity on the Surface Water Fraction of Planets

open access: yes, 2019
One of the unique features associated with the Earth is that the fraction of its surface covered by land is comparable to that spanned by its oceans and other water bodies.
Lingam, Manasvi, Loeb, Abraham
core   +1 more source

Wide-bandwidth high-resolution search for extraterrestrial intelligence [PDF]

open access: yes
This interim report summarizes the research accomplished during the initial 6-month period of the grant. Activities associated with antenna configurations, the channelizing downconverter, the fast Fourier transform array, the DSP (digital signal ...
Horowitz, Paul
core   +3 more sources

Can Collimated Extraterrestrial Signals be Intercepted?

open access: yes, 2014
The Optical Search for Extraterrestrial Intelligence (OSETI) attempts to detect collimated, narrowband pulses of electromagnetic radiation. These pulses may either consist of signals intentionally directed at the Earth, or signals between two star ...
Forgan, Duncan H.
core  

Impacts of sociopolitical conditions [PDF]

open access: yes
Space development scenarios and the choice of technologies to carry them out depend upon the future social, economic, and political factors. A brief discussion concerning the impact of sociopolitical conditions on space exploration is presented.
Finney, Ben R.
core   +1 more source

Fourth Symposium on Chemical Evolution and the Origin and Evolution of Life [PDF]

open access: yes
This symposium was held at the NASA Ames Research Center, Moffett Field, California, July 24-27, 1990. The NASA exobiology investigators reported their recent research findings. Scientific papers were presented in the following areas: cosmic evolution of
Andersen, Dale T.   +3 more
core   +1 more source

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