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The Big Bang And Steady State Models
Beginning of essay
It is always a mystery about how the universe began, whether if and
when it will end. Astronomers construct hypotheses called cosmological
models that try to find the answer. There are two types of models: Big
Bang and Steady State. However, through many observational evidences, the
Big Bang t ....
Middle of essay
.... galaxy observed will have
a shift to the red end. The faster the galaxy moves, the more shift it has.
If the galaxy is moving closer, the spectral line will show a blue shift.
If the galaxy is not moving, there is no shift at all. However, as
astronomers observed, the more distance a galaxy is located from Earth, the
more redshift it shows on the spectrum. This means the further a galaxy is,
the faster it moves. Therefore, the universe is expanding, and the Big
Bang model seems more reasonable.... |
| Number of words: 1285 |
Approximate pages: 5 |
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