Question

topic - big bang: approximately how old is the universe? (1 point) ____________ identify two evidences for the big bang theory: (1 point) 1)__________ 2)__________ explain one of these two evidences: (1 point) ____________ credit 1 pt: describe how things move in space that allow the formation of galaxies, stars and planets. (there are

Explanation:

The universe is estimated to be about 13.8 billion years old. Two evidences for the Big - Bang theory are cosmic microwave background radiation and the redshift of galaxies. Cosmic microwave background radiation is the after - glow of the Big Bang, a faint glow of light that fills the universe and is consistent with the predictions of the Big Bang model. It is a nearly uniform radiation across the sky with a temperature of about 2.725 K. Redshift of galaxies indicates that galaxies are moving away from us, and the farther they are, the faster they are moving away, which is consistent with the idea of an expanding universe as predicted by the Big Bang theory.

Answer:

1. Approximately 13.8 billion years old
2. 1) Cosmic microwave background radiation
3. Redshift of galaxies
4. Cosmic microwave background radiation is the after - glow of the Big Bang, a nearly uniform faint glow of light across the sky with a temperature of about 2.725 K, consistent with Big Bang model predictions.