Results 81 to 90 of about 4,806 (159)

A preliminary study of the Soviet civil space program. Volume 1: Organization and Operations [PDF]

open access: yes
The organization, planning, and personnel is focused of Soviet space, advantage is taken of glasnost and improved foreign relations to explore a hitherto obscure subject.
Newton, Elizabeth K.
core   +1 more source

How do gravity alterations affect animal and human systems at a cellular/tissue level? [PDF]

open access: yesNPJ Microgravity, 2023
Cialdai F   +61 more
europepmc   +1 more source

Trajectory and navigation system design for robotic and piloted missions to Mars [PDF]

open access: yes
Future Mars exploration missions, both robotic and piloted, may utilize Earth to Mars transfer trajectories that are significantly different from one another, depending upon the type of mission being flown and the time period during which the flight ...
Matousek, S. E., Thurman, S. W.
core   +1 more source

Science and applications on the space station: A strategic vision [PDF]

open access: yes
The central themes relating to science and applications on the Space Station for fiscal year 1989 are discussed. Materials science research is proposed in a wide variety of subfields including protein crystal growth, metallurgy, and properties of fluids.

core   +1 more source

International solar-terrestrial physics program: A plan for the core spaceflight missions [PDF]

open access: yes
This brochure has been prepared by NASA on behalf of the European Space Agency (ESA), the Institute of Space and Astronautical Science (Japan) (ISAS), and the U.S.

core   +1 more source

Artificial Gravity in Mars Orbit for Crew Acclimation [PDF]

open access: yes
NASAs current baseline plan for a crewed Mars mission anticipates a transit time of up to three hundred days in microgravity and 3-14 days on the Martian surface for gravity acclimation before the crew can safely perform their first Extra-Vehicular ...
Rowe, Justin
core   +1 more source

Photovoltaic options for solar electric propulsion [PDF]

open access: yes
During the past decade, a number of advances have occurred in solar cell and array technology. These advances have lead to performance improvement for both conventional space arrays and for advanced technology arrays.
Flood, Dennis J., Stella, Paul M.
core   +1 more source

Aerospace medicine and biology: A continuing bibliography with indexes (supplement 331) [PDF]

open access: yes
This bibliography lists 129 reports, articles and other documents introduced into the NASA Scientific and Technical Information System during December, 1989.

core   +1 more source

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