I'm guessing whatever images were not a 500 mile away view of earth. They were zoomed in just like imaging from a spy plane or satellite balloon. Ocean waves can also be measured by buoys they planted everywhere around the world, you can see them on charts and chart programs.
I'm guessing whatever images were not a 500 mile away view of earth. They were zoomed in just like imaging from a spy plane or satellite balloon. Ocean waves can also be measured by buoys they planted everywhere around the world, you can see them on charts and chart programs.