The Big Bang

By: Lorenzo Díez-Picazo and Junho Lee

What is the Big Bang?

•Model that explains the origin of the Universe.

What does this theory state?

•The universe started with a big explosion.

•The universe is in constant expansion.

•At first all of space was concentrated in a single point.

•Massive electrically neutral atoms formed stars and galaxies.

Who discovered the big bang?

•There is not only one scientist who has discovered this theory but many little discoveries and arguments that make us believe that this theory is true

•The works of Alenxader Friedman and Georges Lemaître during the 20´s using the theory of relativty.

•Edwin Hubble discovered in 1929 galaxies (farer away from the milky way) that were getting away from the Earth.

•Space engineers have said that they have heard the waves of the expansion.

•Scientist say that at the begining of the universe, temperatures were hotter and they are getting cooler (in space).