A Nasa satellite to crash to Earth has prompted warnings from space officials, who say debris from the aging spacecraft could survive its fiery descent through the atmosphere. While the spectacle may sound like the plot of a science fiction film, experts say the odds of anyone being struck remain extremely small. Re-entry Expected Tuesday Nasa satellite to crash to Earth Tuesday evening as debris may survive re-entry, officials warn. A Nasa satellite to crash to Earth has prompted warnings from space officials, who say debris from the aging spacecraft could survive its fiery descent through the atmosphere. While the spectacle may sound like the plot of a science fiction film, exp... [2393 chars]