good one!! there could be more species living on other planets far far away.. I heard that scientists found a planet like of Earth..
however, we cant say about the far future of Earth as Andromeda is going to hit Milky Way in 4 billion years.. maybe people will move away from Earth.. etc..
bilkul.. aapko mujhse darna chahiyey ab
lol, do you really believe in that??
let suppose an alien spacecraft crash landed earth back in 1947.. do you think the alien from the other planet will leave them here on their own?? or dont try to invade or atleast contact us??