Space Travel
11, Feb, 2012

Space exploration began with the launch of Sputnik and Astrophysics was born as the application of physics to the phenomena observed by Astronomy, which etymologically means laws of the stars.

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Term Definition
Yarkovsky Effect
The effect of its rotation on the path of a small particle orbiting the Sun. Rotation causes a temperature variation, so thermal energy is re-radiated anisotropically. See also: Poynting-Robertson effect.