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Space Definitions - R Topics
From
Nick Greene
, former About.com Guide
Space definitions for topics that begin with R.
RADAR
Radial Velocity
Radian; Rad
Radiation
Radiation Belt
Radio
Radio Astronomy
Rawdata
Rayleigh Criterion; Resolving Power
Rayleigh-Taylor Instabilities
Re-entry
Reddening
Red Giant
Redshift
Reflection Law
Refraction
Refractive index
Regio
Regolith
Relative age
Relativity, Theory of
Relativity Principle
Resolution
Resonance
Resurfacing
Reticulum
Retrograde
Retrograde Motion
Revolution
Rift Valley
Right Ascension
Rima
Ritter, Johann Wilhelm (1776 - 1810)
Roche Limit
Roche Lobe
Roentgen, Wilhelm Conrad (1845 - 1923)
Rotation
Rupes
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