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Top 20 Directory:
Top : Science : Technology : Space : Research
  		• Astronomy@
  		• NASA Propulsion@
  		• NASA@
  		• Propulsion@
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    Sites:
  		• Canadian Space Agency: Offers overview of research programs. Includes scientific documents, project descriptions, newsletter, and links for educators.
  		• Inter PlaNetary Internet: Study to design a deep space communications network protocal.
  		• Plastics and Space: Provides information about the use and history of plastics in applications in space.
  		• Soil Mechanics Experiment Makes Clean Sweep: Six test cells were processed in an experiment to study the movement of powders, grains, and dirt in the low-gravity conditions of space.
  		• Space and Advanced Communications Research Institute: Provides an overview of a US research institute.
  		• Space Biology Group: Features overview of two Swiss institutes and their research.
  		• Space Elevator: Physical theory of the building of the space elevator.
  		• Space Elevator News: Research news on launching by cables extending into space. Frequently updated.
  		• Space Mechanics Group: Space mechanics Group at the University of Pisa. Includes research, and projects.
  		• Space Science Research Activities in India: Features an overview of the scientific space research programs in India, including project descriptions, facilities and space flights.
  		• Tyrell Corporation Solar Storm Monitor: Offers satellite imagery and an overview of space weather in terms of storms.
  		• University of Leicester: Space Research Centre: Houses a number of research groups including Earth Observation Science and the Solid State Devices Group.
  		• ZARM: Center of Applied Space technology and microgravity, at Bremen University. With specification of the research facilities including a drop tower.
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