Space rock, called “Asteroid 2010 WC9”, will take place on the planet about half the lunar distance on Tuesday.
It is considered incredibly small in space and is classified as a near-Earth encounter.
The asteroid measures from 60 to 130 meters and moves at a speed of more than 28,000 miles per hour.
It was “lost” after the first discovery by astronomers in November 2010, before they lost sight of it in December.
The rock has completed its orbit and now returns to Earth eight years later.
On May 15 at 11.05 pm he will make his closest approach only 0.53 lunar distances (126.419 miles) from the planet.
The Jet Propulsion Laboratory of NASA said it was the closest place to it in 300 years.
And people can watch the spectacle on the Internet, and the observatories of Northolt Branch in London broadcast it live.
Guy Wells of the observatory said: “We plan to broadcast this asteroid to our Facebook page if the weather forecast remains positive.
“The broadcast will last less than 25 minutes, since the asteroid will cross our field of view during this time period.
“The asteroid will move pretty fast (30 seconds of arc per minute).
“Our display will be updated every five seconds. We, of course, collect astrometric data while this happens, but the movement of the asteroid will occur every five seconds. “