If there is more than one initial, there is no space after the period which separates them. After the period after the last initial there is one space.e.g. T.S. EliotAfter a period at the end of a sentence you do two spaces, but often only one is done.
One space follows a period after an initial.
In standard prose typing, you space twice after a period.
You put the right quote immediately after the period and then 1 space.
Once. That is enough.
Two times
It is standard to use only one space after an internal period. Additional spaces are not necessary for clarity.
how many times has tom peake been to Space
I am a genius! i know how many times Julie Payette went to space. Julie went into space 3 times.
As many times as you need to
you space for a month....
It was a very confused period, with many states existing at various times.