3 Mysterious Orbs Play "Tag the Stars"

Let's now look at three photos that show the same thing: a mysterious orb in front of the stars on the US flag at Grand Central Terminal. Here is the first such photo, from October 13, 2015.

Here is another similar photo from three days earlier, again showing a blue orb in front of the stars on the flag.

Here is another similar photo from September 18, 2015, again showing a blue orb in front of the stars on the flag.

But a more popular orb game seems to be "tag the flag edge." I have 16 photos showing that, as shown here.