Are there any asteroids on a collision course with earth?

Sort of. There is an asteroid headed in earths direction, scientists just haven't calculated if it will hit or miss. They feel strongly that it will come within 26 thousand miles of earth. However they are not yet certain of that. This will not happen till 2029. If the asteroid does hit earth it will end ALL life on earth, it will sterilize our planet. The asteroid I believe is the size of manhattan.