 Astronomy: The scientific study
of the Galaxies, Stars, Nebulae, Solar Systems and the
Universe. It deals with a celestial object's
relationship to the Earth, size, position,
composition, motion, evolution and energy.
Astronomers use telescopes, satellites,
computers, space stations and observatories
to study the universe.
Astrophysics:
The branch of Astronomy that studies the
Physics of the Universe. |
