Originally posted by chrisnolefan
i dont think it would be too big a deal if it did hit, it may burn up beofre it hit the earth.
Depends on composition.
If it's porous rock or gravel it could explode in atmosphere with power of tens megatons, like what happened in Tunguska. (effects are same as with airblast of very big thermonuclear bomb)
If it's denser material it would hit ground causing crater similar to Barringer.
www.lpl.arizona.edu...
But this isn't close, there have been bigger ones and closer, 2002NY40 passed earth from distance of 500 000 km. (it's movement showed well even in five seconds when watching with telescope)


