Results 121 to 130 of about 5,203 (251)

Space life sciences strategic plan [PDF]

open access: yes
Over the last three decades the Life Sciences Program has significantly contributed to NASA's manned and unmanned exploration of space, while acquiring new knowledge in the fields of space biology and medicine. The national and international events which
Nicogossian, Arnauld E.
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

Microgravity Particle Research on the Space Station [PDF]

open access: yes
Science questions that could be addressed by a Space Station Microgravity Particle Research Facility for studying small suspended particles were discussed. Characteristics of such a facility were determined.
Mckay, Christopher P.   +2 more
core   +1 more source

Organic and inorganic geochemistry of samples returned from Mars [PDF]

open access: yes
Although a tremendous amount of knowledge can be obtained by in situ experiments on Mars, greater benefits will be realized with the sample return mission from the perspective of exobiology.
Johnson, R. G., Kotra, R. K.
core   +1 more source

Thermodynamic Predictions of Hydrogen Generation during the Serpentinization of Harzburgite with Seawater-derived Brines

open access: yesThe Planetary Science Journal
Salty aqueous solutions (brines) occur on Earth and may be prevalent elsewhere. Serpentinization represents a family of geochemical reactions where the hydration of olivine-rich rocks can release aqueous hydrogen, H _2(aq) , as a byproduct, and hydrogen ...
Sanjoy M. Som   +4 more
doaj   +1 more source

Assessing microbial diversity in Yellowstone National Park hot springs using a field deployable automated nucleic acid extraction system

open access: yesFrontiers in Ecology and Evolution
Microbial diversity estimation involves extracting nucleic acids from intricate sample matrices. Preparing nucleic acid samples is time-consuming, necessitating effective cell lysis and obtaining pure, inhibitor-free nucleic acid purifications before ...
Jason M. Wood   +17 more
doaj   +1 more source

Aerospace Medicine and Biology: A continuing bibliography, supplement 216 [PDF]

open access: yes
One hundred twenty reports, articles, and other documents introduced into the NASA scientific and technical information system in January 1981 are listed.

core   +1 more source

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