Well, in a cage can also be seen with different and symbolic meanings, in fact it is said to be in a cage even if surrounded so this could add to the possible options the fact that a man on earth has taken power and you look at the earth from above secretly without ever being able to go to Mars as elon musk would like to,or almost nil possibility like the earth taken in a black hole and carried away from our galaxy to another with new life forms. i am Sorry if that's a long message but really I love talking about this Little almost impossible chanches and talk about what could happen.