Transcript Earth in the Universe

EARTH IN THE UNIVERSE
•The
Sun and stars appear to move in an arc across the sky
from east to west.
•BUT in reality, the Earth moves - spins on its axis (rotates).
http://youtu.be/_9gy_BOnEOM
4 minutes
Early astronomers only knew what they could
discover with their eyes and minds – the Sun,
the planets and the moon was their universe.
Astronomy – the study of the universe
PTOLEMY
GEOCENTRIC THEORY
•Greek philosopher
•Believed EARTH was at the center of the universe
•All planets and the Sun revolved around the Earth
•Geo – earth
•centric - center
http://youtu.be/gKu3pB42ZSo
1 ½ min
http://youtu.be/utH-GHH1FT8
3 min
COPERNICUS
HELIOCENTRIC THEORY
•Polish scientist – 1543
•Stated that the SUN was the
center of the universe
•All planets including Earth
revolved around the Sun
•Helio – sun
•centric - center
http://youtu.be/GPBB5thPgQE
2 min.
GALILEO
•Italian astronomer
•First to use the telescope to observe
the planets and stars
•Suggested that Earth and the other
planets might revolve around the Sun
•Tele- far
•Scope - seeing
http://youtu.be/2J0-ZbbrD6U
3 min Bio- Galileo
KEPLER
•German mathematician
•Proposed that all planets revolve around
the Sun in an elliptical orbits and that
the Sun is not exactly in the center
http://youtu.be/VB3V36LJpGc
2 min Kepler Bio
GEOCENTRIC VS. HELIOCENTRIC
•EARTH centered Universe
•All other planets and the Sun
revolve around Earth
•Was accepted for 1,000s of years
•SUN centered Universe
•All planets including Earth
revolved around the Sun
•Accepted
•Planets still rotate on their axis.
•Planets still revolve around the Sun.
•Planets’ moons always revolve around their planet.
http://youtu.be/iiBIFlvu-X0
2 min.
EARTH’S PLACE IN THE UNIVERSE
•Our SUN is one of trillions
of stars in the Universe.
•All the planets in our solar
system revolve around the
Sun in the same direction.
•Most planets rotate on
their axis in the same
direction. (Venus, Uranus & Pluto – Retrograde)
•Most of the planets orbit
the Sun in the same plane.
EDWIN HUBBLE
•Proved that other galaxies do exist beyond the edge of
the Milky Way
•Proved that galaxies are moving apart and the Universe is
still expanding from the Big Bang
Spiral
Irregular
Elliptical
THE MILKY WAY GALAXY
•Shaped like a flat pinwheel.
•Our solar system is located in the middle of one of the arms
•Spiral galaxy.
http://youtu.be/C0Ok_u1x12M
3 min.
THE HUBBLE
SPACE TELESCOPE
Hubble was first launched on the
24th of April 1990. Today, Hubble
has been operation for over 20
years.
The Hubble Space Telescope (HST)
has been our eyes on the universe
for the last two decades. It has
showed us what we thought we knew
was impossible, it has showed us
natural beauty artists haven't
imagined, it has captivated the
minds and hearts of millions and is
the most recognized observatory
ever built.
http://youtu.be/zjuyPPTi1q0
4 ½ minutes
BIG BANG THEORY
http://youtu.be/jJ3NQYoO8sg
2 min.
•Most widely accepted theory of the formation of our Universe
•All matter was once together and was blown apart by a big explosion
•The Universe is still expanding.
•Hubble proved this expansion by measuring the movement of galaxies.
UNIVERSE
GALAXY
SOLAR SYSTEM
EARTH
http://youtu.be/lhTSfOZUNLo
2 min Big Bang Song TV
http://youtu.be/ZOkUcLKpAto
4 min Parr – Big Bang Song
http://youtu.be/mAfOhOd8jow
4 min Parr- Galaxies Song
http://youtu.be/GH61v4_eVNA
3 min Parr – Solar System song
TCMS
M. Brumbaugh
Created 2012