there is no truth to this.You can go to spaceweather.com for regular updates on near earth asteroids, or to http://ssd.jpl.nasa.......
No asteroid of any size from the Kupier belt ever comes closer than Neptune.
No asteroid of any size is on a collision course with Earth.
A few small asteroids, a few hundred meters wide or so, are expected to pass near Earth but not collide.
You must have been on a forum for nutcases. There is no asteroid larger than 600 miles diameter. One the size of the Moon would be a dwarf planet. In any case, there is no truth to this. You can go to spaceweather.com for regular updates on near earth asteroids, or to http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=
and fill in the name, number etc for any asteroid after the =
2012 DA14 is coming back next year. But it will miss, and it's only 40m across, and nowhere near the Kuiper belt.
It is not true.