Some scientist say out Sun is going to burn out in about four and a half
billion years so we have to hurry up and find another Planet in another
Star system far,far away to live on.Although I seriously doubt there
will be any Humans on Earth anywhere near that time frame,we will either
self destruct or a Meteor or a Comet will knock the heck out of
Earth.Besides,Space is another Frontier and Humans have to Explore
things.
cuhulin