The Milky Way
The sun and earth's planetary system is located in a galaxy with this name.
This refers to large clusters of stars that are in the shape of an elongated oval and appear to be flat celestial objects.
This is the closest galaxy to the Milky Way Galaxy and is 2.5 million light years from earth.
Heliocentric Planetary System
This arrangement has its star at the center of the system with its planets orbiting around it.
The Origin of the Species
This is the life-work of naturalist Charles Darwin.
This is the branch of astronomy that deals with the universe and the celestial objects located within it.
Law of Inertia
Galileo completed this theory of Aristotle's by adding that a body in motion tended to stay in motion, especially the denser their mass was.
Einstein's Theory of Special Relativity
This theory is represented...
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