Front

What is Cosmic Background Radiation (CMB)?

Back

The remaining energy from the Big Bang.

Front

What is the term for the effect when light from an object moving away from you is stretched to longer wavelengths?

Back

Red shift.

Front

What happened during the Big Bang?

Back

All of what would become the universe was concentrated in a single small point, or singularity, which rapidly expanded into what is now stars, planets, galaxies, matter, and energy.

Front

What are two pieces of evidence for the current theory of the universe?

Back

Redshift and Cosmic Background Radiation (CMB).

Front

What atoms primarily made up the universe before the formation of stars?

Back

Hydrogen and helium.

Front

What does the term 'singularity' refer to in the context of the Big Bang?

Back

A point in which all matter was concentrated before the rapid expansion of the universe.

Front

What is the Doppler effect?

Back

The change in frequency or wavelength of a wave in relation to an observer moving relative to the wave source.

Front

What is the significance of redshift in astronomy?

Back

It indicates that an object in space is moving away from the observer, providing evidence for the expansion of the universe.

Front

What is the relationship between redshift and the Big Bang theory?

Back

Redshift supports the Big Bang theory by showing that galaxies are moving away from us, indicating that the universe is expanding.

Front

What is the role of hydrogen and helium in the early universe?

Back

They were the primary elements formed during the Big Bang nucleosynthesis, leading to the creation of stars.