Front

What happens to waves as the universe expands?

Back

They stretch out.

Front

What is the change in wavelength that allows us to determine if an object is moving toward us or away from us?

Back

Redshift and Blueshift.

Front

What is Cosmic Background Radiation?

Back

The leftover energy from the Big Bang.

Front

Who were the scientists credited with first detecting the CMB radiation in 1965?

Back

Arno Penzias and Robert Wilson.

Front

Why is the glow of microwave light and not visible?

Back

Because the universe has expanded.

Front

What is Redshift?

Back

The phenomenon where light from an object moving away from us shifts to longer wavelengths.

Front

What is Blueshift?

Back

The phenomenon where light from an object moving toward us shifts to shorter wavelengths.

Front

What does the Cosmic Microwave Background (CMB) represent?

Back

The afterglow radiation from the Big Bang, providing evidence for the universe's expansion.

Front

What is the significance of the CMB in cosmology?

Back

It supports the Big Bang theory and helps scientists understand the early universe.

Front

What type of radiation is the CMB?

Back

Microwave radiation.