why astronomy

You know this is a world where everyone has getting everything to the hands, just the thing they need to do is Deserve it.Till how long you deserve those things, untill one who hands it in your handsand thereafter???No need to think,quite you need to do with your hands..It seems like philosophy,but still true fact every one knows..
merging it with astronomy..
You are safe in your home where even a heavy mass of air or huge lumps of darkness and strokes of lights even they fall at you,but what makes it you save???its a flat plate rounded by a huge spherical mass called earth.if this could dissapear where will be your house,atleast where will you be..its hard but funny to estimate, we would miss every day,every night,every star,every one...just estimate!!! so lets try if this earth could dissapear where could be the other earth we can find...
so lets go in search with it..let us keep our arms to finish the circle..