origins of our solar system

Honelako gehiago

Mechanisms of Evolution

yasmine sabri‑k egina

Mars

Tina Webb‑k egina

Big Bang

Dalia El Serafy‑k egina

Natural Selection

Addisyn Schuster‑k egina

our origins

expanding universe

big crunch

Hubble's discoveries

red shifted galaxies

big bang

hydrogen and helium predominance

backgroudn radiation

14 billions years ago

life on earht

darwin's theory

evolution

luca

habitable planet earth

magnetic field

appearance of water

desent from stars

formation of sun

life cycle os stars

manufacturing of elements

fusion