nuclear fushion reaction responsible for the energy produced by the stars

stars that fuse hydrogen atoms

distance light years that can travel in years

structure; baryonic matter

structure; cold dark matter

structure; dark energy

structure; 4.6%

24%

71.4%

the three most abuntant element

building blocks of galaxy

hot core of future star

cluster of billions of stars and galaxies

Age of universe

age of billion light years

evidence for expanding universe

a cosmic egg or brahmanda which contain the whole universe

original state of the cosmos was primordial mixture of all ingredient

greek philosophers leucippus and democritus

founded the shool of astonism where they held that universe was composed of very small, invisible and indestructible building blocks known as atoms

all reality and all theobjects in the universe

geocentric universe

spherical earth is the centre

believed that the universe is like a giant living body

the furst person to present explicit argument

model of the solar system, placing the sun, not the earth

roman-egyptian mathematician and astronomer

the universe based on the theory of aristotle

a stationary earth in circular epicycles

characteristics of newtons static, infinite universe

published his "pricipia" which described a static, state, infinite universe

static,dynamic, stable universe

belgian costmologist and priest

the universe developed 13.8 years ago