There is a transparent shield or barrier surrounding earth. It completely covers earth. It's like a bubble, and earth is inside the bubble. It expands like a bubble or pregnancy, and weakens as it expands.
I was made to understand (in vision) that the purpose of the shield is protect humanity against evil force(spiritual satan) up there, but the enemy(satan) seems to be gaining more control of earth as the shield expands and weakens.
Over 40 years ago, NASA spent considerable money to prove religion is nonsense.
https://voyager.jpl.nasa.gov/mission/status/Unless this bubble extends more than 14 billion miles?