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Astronomy

Astronomy is a natural science that studies celestial objects and phenomena. It uses mathematics, physics, and chemistry in order to explain their origin and evolution. Objects of interest include planets, moons, stars, nebulae, galaxies, and comets.

Ch-1 Aliens

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 1FREE

Ch-2 Asteroid and Comets

(  REVIEWS )
 1FREE

Ch-3 Big Bang Theory

(  REVIEWS )
 1FREE

Ch-4 Blackhole and Wormholes

(  REVIEWS )
 1FREE

Ch-5 Earth

(  REVIEWS )
 1FREE

Ch-7 Telescope

(  REVIEWS )
 1FREE

Ch-8 Mars Visit

(  REVIEWS )
 1FREE

Ch-9 Solar System

(  REVIEWS )
 1FREE

Ch-10 Star

(  REVIEWS )
 1FREE

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