Earth and Life Science Lesson: How did the Universe come to be? Origin of the Universe

1. What
if?

2. there
were no
stars?

3. there is
no sun?

4. there is
no Earth?

5. How Did The
Universe Come
To Be?

7. Cosmology – the
understanding of the
origin, evolution,
structure, and fate of
the universe.
Evolution - process of
development of the Universe
Origin - beginning of
universe
Structure - arrangements
and relations between
every parts of the universe
Fate of the universe
refers to density and
mass concentration
of the planets and
everything in the
universe

8. Philolaus (470-385
BC)
he was the first to
proposed that the
Earth is not the
center of the
universe but a
central fire, around
which other
celestial objects
revolve uniformly
In his model, Sun is
just a reflecting body
that gives light to the
Earth at dawn and
dusk

9. Aristarchus
(310 - 230 BC)
seconded
Philolaus that the
central fire was
actually the Sun.
He was the first to
introduce the
Helliocentrism
model of the
universe.

10. Aristotle (384 -
322 BC)
He proposed that
the center of the
universe is Earth
He proposed
Geocentric model
of the universe.

11. Ptolemy
(100 - 170 AD)
He seconded
Aristotle viewed of
the universe and
planets on the
Geocentric model
become Ptolemaic
model of the
universe.

12. Albert Einstein, 1919
A static universe, also
referred to as a
'stationary' or 'infinite'
or 'static infinite'
universe, is a
cosmological model in
which the universe is
both spatially infinite
and temporally infinite,
and space is neither
expanding nor
contracting

13. Big Bang
Theory

14. 1. The Planck Era
first era that
marked the
beginning of the
universe, the
universe was very
tiny, smaller than
atom and assumed
to be made up of
condensed energy

15. 2. The Grand Unified
Theory Era
it begun when the
“superforce” split
into types - gravity
and GUT force

16. 3. Electroweak Era
In this era, there
were three forces
operating in the
universe, gravity,
strong force and
electroweak force

17. 4. Particle Era
Photons, a particle
of light or other
electro magnetic
radiation, collided
with another photon
to form matter and
anti matter

18. 5. is the process that
creates new atomic
nuclei from pre-existing
nucleons (protons and
neutrons) and nuclei.
According to current
theories, the first nuclei
were formed a few
minutes after the Big
Bang, through nuclear
reactions in a process
called Big Bang
nucleosynthesis.