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Traditional Views About Universe1.Geocentric Universe 2.Heliocentric System
The Earth is the center of the universe and is stationary.The planets, sun and stars revolve around Earth.Geocentric Universe
Geocentric Universe was presented by ____Claudius Ptolemy
Sun is the center of the solar systemHeliocentric System
He concluded that Earth is a planetNicolas Copernicus (1475-1543)
He first proposed the Heliocentric SystemAristarchus of Samus (312-230 B.C.)
This theory assumes that the universe is getting continually bigger or getting bigger forever.Open Universe
He discovered that galaxies of the universe are moving farther apart.Edwin Hubble (1889-1953)
This theory successfully explains the expansion of the universe and the observed abundance of helium in the universe.Big Bang Theory
The Big Bang Theory was first developed in 1927 by _____A.G.E. Lemaitre (1894-1966)
This theory suggests that there is neither beginning nor end to the universe, and it has a constant mean density.Steady State Theory
They proposed the Steady State TheoryHemann Bondi, Thomas Gold, and Fred Hoyle
It is a symbolic narrative of the beginning of the world understood by a culture.Creation Myth
A battle between gods focused on the supremacy of Marduk (Marduk was a god from ancient Mesopotamia and patron of deity of the city of Babylonian.Enūma Eliš (Enuma Elish)
He believed in a primordial universe and explain that the original state of the cosmos was a primordial mixture of all its ingredients which existed in infinitesimally small fragments of themselves.Anaxagoras
It describes the universe as an oscillating universe in which a “cosmic egg” or Brahmanda containing the whole world universe – including the sun, moon, planets, and space – expanded out of a single concentrated point called Bindu, will eventually collapse again.Rigveda
They believed in an atomic universeGreek philosophers Leucippus and Democritus
It is a red dwarf star, and is the sun’s nearest known stellar neighbor, at a distance of 4.3 light-years away.Proxima Centauri
it is a part of about 30 galaxies called the local group. Stars within our galaxy are dominant source of light at the infrared wavelength.Milky Way
The nearest large galaxy is the _____Andromeda Galaxy
It contains 99.86% of the mass of the solar system and forms the central body around which all other bodies revolve.The Sun
This theory supposed that the planetary system was formed from the materials removed from the sun by great gravitation.The Planetisimal Theory
As this star collided with the sun, it eventually exploded and its materials were held by the sun's gravitation. From these materials, various planets and other bodies in the solar system were formed.The Companion Star Theory
He proposed the Companion Star TheoryFred Hoyle
This theory proposed that the gas and dust particles began to come together under gravity to form a denser and denser mass, which started to rotate. The more it collapsed, the faster it rotated. Over time, formed into a disc, with a bulge in the middle.NEBULAR HYPOTHESIS