Based on our current understanding of physics, we can understand the conditions that prevailed in the early universe as far back in time as about ________.
A) one ten-billionth of a second after the Big Bang
B) 380,000 years after the Big Bang
C) 10⁻⁴⁵ seconds after the Big Bang
D) 10 billion years ago

Question

Quizplus · Accepted Answer

Our current understanding of physics, particularly the Standard Model and General Relativity, allows us to understand conditions as far back as one ten-billionth of a second after the Big Bang. Before this, the conditions are too extreme for our current theories to describe accurately.

Based on Our Current Understanding of Physics, We Can Understand