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Transcript
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Big Bang Theory
Created by Evan Chernenko
Big Bang Theory

The Big Bang Theory is, the universe started in one small area in space about
13.7 billion years ago and everything in space was created at the same time
do to energy.

The Big Bang Theory was found by Edwin Hubble in 1929.

No one knows how the Big Bang was started, but one theory is, there was an
explosion of energy.
Characteristics of an Expanding Universe

Hubble's proposal explains if the distance between galaxies increases the
universe is expanding.

For example, the raisin bread baking in the oven, when the loaf rises the
distance between the raisins gets bigger.

Red shift analysis shows that the wavelengths between the galaxies are
stretched, therefore, the galaxies are moving farther apart.
Technologies Astronomers use to Advance our
Understanding of the Universe

Spectroscope: Used to identify celestial bodies in distant galaxies.

An optical spectrometer is an instrument used to measure properties of light
over a specific portion of the electromagnetic spectrum, typically used in
spectroscopic analysis to identify materials.

Hubble Telescope: Used to identify far galaxies and take pictures.

Hubble Telescope is a space telescope that was launched into low Earth orbit in
1990, and remains in operation. With a 2.4-meter mirror, Hubble's four main
instruments observe in the near ultraviolet, visible, and near infrared spectra.
Technologies Astronomers use to Advance our
Understanding of the Universe

Satellite: Used to gather information from other planets.


Space Probe: Used to explore our solar system and other galaxies.


an artificial body placed in orbit around the earth or moon or another planet in
order to collect information or for communication.
An unmanned spacecraft designed to explore the solar system and transmit data
back to earth.
Planetary Rover: Used to explore the surface of planets and moons.

Is a space exploration vehicle designed to move across the surface of a planet or
other celestial body.
Formation Characteristics of Galaxies

Spiral Galaxies: Have a center area which is surrounded by stars. The center
area contains a black hole which is covered by dust and gases.

Elliptical Galaxies: Have not so much gas and dust, mainly made of older
stars, they are wide in size and can be the biggest and smallest type of
galaxies.

Lenticular Galaxies: Have a center area with a disk in it, but its not the same
as a Spiral Galaxies.

Irregular Galaxies: Irregular Galaxies are usually formed by other galaxies
hitting each other or from gravitational interactions between galaxies. They
come in a lot of different type of shapes and sizes.
Astronomers Terminology

Cosmology: Is the scholarly and scientific study of the origin, evolution, largescale structures and dynamics, and ultimate fate of the universe, as well as
the scientific laws that govern these realities.

Electromagnetic: Relating to the interrelation of electric currents or fields
and magnetic fields.

Electromagnetic Waves: Naturally occurring materials, by contrast, don't
interact with the magnetic component of electromagnetic waves.

Cosmic Background Radiation: Is radiation left over from early development
of the universe, and is a landmark proof of the Big Bang theory.

Radiation: The emission of energy as electromagnetic waves or as moving
subatomic particles, especially high-energy particles that cause ionization.
Astronomers Terminology

COBE: The Cosmic Background Explorer, also referred to as Explorer 66, was a
satellite dedicated to cosmology.

WMAP: The Wilkinson Microwave Anisotropy Probe, originally known as the
Microwave Anisotropy Probe and, as part of NASA's Explorers program