|  Asteroid
              could kill us all, scientists say 
 A newly discovered mile-wide asteroid may be on collision course
              with Earth, scientists warned yesterday. The asteroid could hit
              the planet in 30 years' time, wiping
              out our civilisation as we know it. The respected International
              Astronomical Union (IAU) has predicted that if the giant asteroid
              does strike the planet, the cataclysmic explosion will take place
              at 6:30pm on Thursday, 26 October, 2028.
  The object,
              known as 1997 XF11, is certain to pass within the distance of the
              Moon from the Earth, but it may come much closer. Scientists have
              calculated it could approach within 26,000 miles of the Earth's
              surface, and that there is a 1,000-1 chance that it will hit the
              Earth at more than 17,000mph.
              Scientists will monitor its orbit and may be able to determine next
              year whether it will strike our planet.   Brian Marsden,
              of the IAU, who made the calculation, said: "It will come extremely
              close. The chances of impact are very small, but cannot be dismissed."
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