Earth: is any clone exits in universe????

Hi Rohitthehero, and yes, there are definitely many other planets with live on them. And yes, aliens do exist too, because we call them aliens - but for them we are the aliens :) According to quantum physics there are many realities co-existing next to one another, and in such a case what we perceive as reality on our Earth, will be science fiction to the people on Earth in an other reality next to ours :)