Are you saying a God that created everything could not make light in flight?
You know, that kind of silliness gives Christians a bad name.
Sure, God could have created light in flight. Maybe dinosaurs never existed -- God put fake bones in the ground. Maybe God created the earth 15 minutes ago and I'm the only inhabitant -- everyone I see is a figment of my imagination and the memories I have are phony ones put there by God.
Did you not see my link to the meaning of the Hebrew word for day? I have the blessing to have been close friends to a number of Orthodox Jews during my life. You know what? None of them believe that the earth was created 6,000 years ago. Why? Because they understand Hebrew.
God gave you a brain and he's given us plenty of evidence about how old the universe is. Use your brain for God's glory, not as a stunbling block for others.