We have radar capable satellites we use to bounce a signal off the ground, through a hanger door and then reconstruct the image to discern what is hidden there.

We have radar capable satellites we use to bounce a signal off the ground, through a hanger door and then reconstruct the image to discern what is hidden there. https://www.youtube.com/watch?v=ztR9mdJ1YWU https://www.youtube.com/watch?v=ztR9mdJ1YWU https://www.youtube.com/watch?v=u2bUKEi9It4 https://www.youtube.com/watch?v=u2bUKEi9It4 https://www.youtube.com/watch?v=dOoCltqtJR8 https://www.youtube.com/watch?v=dOoCltqtJR8