there are many ideas about how the world will end. do you think the world Will end some day? have you ever thought what would happen if the sun got so hot that it bursts or grew colder and colder
There are all sorts of discussions on this topic. However, no body knows what will happen in future. When and how will earth come to an end is not known. Scientific researches are being done every then and now but nothing has come for sure till now.