The Bible clearly tells us that some day the world as we now know it will come to an end. This present universe won't last forever; some day "The heavens will disappear with a roar; the elements will be destroyed by fire, and the earth and everything in it will be laid bare" (2 Peter 3:10).
How will this happen? The Bible doesn't tell us in detail (although it indicates that the whole universe will be destroyed, not just the earth -- suggesting something far greater than a meteor or a man-made catastrophe). But this will only happen because God makes it happen! God is in control of this world (and the whole creation) -- and it won't happen one second before God causes it to happen.
But this isn't the end of the story! God will make a new world -- a perfect world that is completely free from sin and sickness and death. The Bible says, "In keeping with his promise we are looking forward to a new heaven and a new earth, the home of righteousness" (2 Peter 3:13). We can barely imagine this -- but it's true, and some day we will share in it if we know Christ.
Never forget: The future is in God's hands. Is your life in His hands also? Don't face the future with doubt or despair, but put your life into Christ's hands. He alone gives us hope -- hope for today, and hope for all eternity.