Science universe

Robert Dicke

Understood what they found

About how long ago do scientists believe the universe began?

13-14 billion years ago

Penzias & Wilson

Accidently discovered Cosmic background radiation

Theory that all matter and energy in the universe exploded 10-15 billion years ago and began expanding in all directions

Big Bang theory

Apparent shift toward shorter wavelengths of light when a luminous object moves toward the viewer

Blue shift

George Lamaitre

Came up with the idea of the big bang

Steady but faint microwaves from all over the sky

Cosmic background radiation

Radiation left over from the Big Bang is called

Cosmic microwaves background radiation

The study of nature, structure, origin, and fate of the universe

Cosmology

Unexplained high speed of galaxies going into outer space

Dark energy

Matter not visible through current methods, but observable through gravitational interactions between galaxies

Dark matter

An observed change in the frequency of a wave when the source or observer is moving

Doppler effect

The red shift of distant galaxies show that the universe is

Expanding

The Big Bang was what?

Expansion

Theory that matter distorts space

General relativity

What were the first elements created

Hydrogen and helium

Apparent shift when a luminous object moves away the viewer

Red shift

George Gamow

Russian born, "we should be able to hear through microwaves" and detect it

Guth

This astrophysicist said that the universe expanded faster than the speed of light known as the inflation theory.

Sum of all space, matter and energy

Universe

What is the universe made up of?

energy, matter/dark matter, spacetime

What do the initial moments after the Big Bang have in common with the universe as it exists now?

the universe began expanding then, and it is still expanding today

Three possibilities for the future of the universe

• universe Keeps expanding forever • universe stops expanding • universe contracts