A photon is produced 300,000 years after the Big Bang,eventually reaching a telescope on Earth.How did it travel to get there?

Question

Quizplus · Accepted Answer

The photon scattered off matter during the early universe's dense and hot state, known as the "photon-baryon fluid," for about 300,000 years until the universe became transparent. After this period, known as recombination, it traveled in a straight line through space until it reached the telescope on Earth.

A Photon Is Produced 300,000 Years After the Big Bang,eventually