This must be the ugliest most short sighted unimaginative laziest designed flag for planet earth ever made... A circle of 7 ring noses... Why 7? 7 continents? Or is it 6 continents? Why is the center hollow? Hollow Earth Theory?
well maybe because they knew what my lucky number is
Looks better than op's. But pluto shouldn't be there.

And a flag that gives information where we are can be a bad idea.
The flag represented what Earth and where it is. So, maybe if aliens are really exist, they will know where the location of Earth is from the flag.