How rapidly did the size of universe change in the first few minutes after the big bang?
Light minute speed = 17097547480 km/minute
As I understand now, it was speeding out of matter, from a point
source, at the speed of light, with consequent formation of the
systems of our universe, within the expanded limits.
1 light second (ls) = 299792458 km/s
1 light minute = 60 ls.