Hello @verma, Im not happy about hearing this, lucky Benjamin won't be around for Bennu. a 1 in 2700 chance it to much for me. Hopefully by then our tech will be much more advanced and we can do something about this. There are techniques being developed to divert these asteroids. You can use a high powered laser to heat a side of the asteroid causing a force which can change the orbit of the asteroid and stop an impact.

The problem we have is the that we can only see asteroids larger than about 30-50m, iron-nickel asteroids that are 30m in diamter would cause a devastating impact. Look at the Barringer crater for example.

Just a bit of advice, if you would like upvotes from steemstem community or others, it's better to use reference for the image and also your information. Also images must be fair use, and not copyright, wikimdia is a good source. I hope that advice helps, if you act on it you could very well see some good votes in the future. Check out my blog for example.

Have a good day, and hope to see you around.

@physics.benjamin