Although the odds of an asteroid striking Earth are extremely low (a 5,000-foot asteroid is only expected to hit the Earth about once every 1 million years), NASA does have a plan of action, in case an errant space rock were making its way towards the planet.
When a survey discovers what could be a new near-Earth object (NEO), it gets logged with the Minor Planet Center in a public forum.
If a newly discovered object does look like it is on a course that would bring it near Earth in the next six days, the Minor Planet Center’s system sends out an automated text message or email to a select group of people at the center and NASA.
If the asteroid actually looks like it has a chance of striking the planet NASA notifies the White House Office of Science and Technology Policy, and then soon after, issues a press release to inform the public.
DATE : 4 December 2016
SOURCE : Mashable