During which period in the universe's history did its galaxies undergo the MOST vigorous period of star formation?
A) the first 500 million years after the Big Bang
B) from about 500 million to 2.5 million years after the Big Bang
C) the past four billion years
D) the past billion years

Question

Quizplus · Accepted Answer

The most vigorous period of star formation in the universe occurred from about 500 million to 2.5 billion years after the Big Bang. This era is often referred to as the "cosmic noon," a time when the rate of star formation reached its peak.

During Which Period in the Universe's History Did Its Galaxies