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age:infinant and size:300,000 light years
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scientist:
einstein's theory predicted that gravity would bend starlight as it passed by the sun. -
Period: to
cosmic timeline
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eclipse
the scientist needed a total solar eclipse to see the stars near the sun -
scientist
Dr. shapley used observations of globular star clusters made with the 60 inch telescope at the mount wilson observatory -
age and size of universe
age:2billion size:280million light years -
another universe
andromeda was 9000,000 light years away, proving that it lies outside the milky way -
scientist
Dr. Hubble took photos of "spyral nebulae" with the hooker telescope -
cephid
those nebulae showed induvidual cephid including cephid variable stars. -
two types of stars
type 1: brighter and bluer type 2: redr and fainter -
age and size of universe
age: 6billion size: 4.2billion light years -
origin of the universe
The Big Bang Theory -
scientist
Walter baade used the hooker telescope at the mount wilson observatory to take photos of andromeda -
age and size of universe
Age:10-25billion years Size: 25billion light years -
scientist
arno penzias and robert witson were trying to track down unwanted signals that were detecting with the 20-foot hornantenna in holmdel, new jersey. -
measure the speed of the stars
they studied the shift of the stars -
radiation
radiation was coming from the hot dense ball of matter and energy that exist at the beggining of the universe -
age and size of universe
age: 12-20billion size: 30billion light years -
the universe
the universe started as a dense ball of energy that began to expand, distributing hot radiation and space outward in all direction -
dark matter
without dark matter ,the gas would qickly disapate -
inflation theory
the universe underwent a very rapid expansion in a very short amount of time causing the cosmic microwave background radiation -
age and size of universe
age:13.7billion size; 94billion light years -
the universe
the universe is made up of 73% dark energy 23% dark matter and 4% atoms -
Dr. john C.mather
a NASA scientist who won the nobel prize in 2006 for discoveries about the cosmic microwave background -
CMB
Cosmic Microwave Background
