Scientists are able to use the theories of physics to describe the conditions of the universeback to:
A)the moment of the Big Bang.
B)the end of the Planck Epoch.
C)the beginning of GUT.
D)the end of the Radiation Era.
E)the Recombination Epoch.

Question

Quizplus · Accepted Answer

Scientists can describe the conditions of the universe back to the end of the Planck Epoch, which is the earliest period of time in the history of the universe, immediately following the Big Bang. The Planck Epoch is the era up to 10^-43 seconds after the Big Bang, beyond which current physics theories become inadequate to describe conditions.

Scientists Are Able to Use the Theories of Physics to Describe