Bus-sized asteroid will fly between Earth and the moon Tonight just days after its discovery

In the four years ' close shave ', an asteroid will fly between the Earth and the Moon at night, just days after its discovery.

Space rock dubbed asteroid BS32 2017-think between 11 and 25 meters (36-82 ft) high, or about the size of a bus.

It will pass closest to Earth at 20:23 GMT (3:34) today, twice came close to the ground as the moon.

At closest approach, it will be at a distance of 100,214 miles (161,280 km).

The asteroid was discovered on January 30, and has an orbit that stretches from in 3adel flew all the way to Mars.

This is the fourth ' close shave ' asteroid looks this year by Nasa.

January 24, flying the asteroid roughly the size of a school bus to the ground, get 30 percent closer to the planet from the moon.

Nicknamed the ' asteroid ' again, run 2017 BX approached just before midnight (ET), travel 16,600 miles per hour (about 26,700 km/h).

The researchers found the object a few days before the approach, and described it as a close shave.

Just a few weeks before the event, an asteroid, which is as big as the building's 10th floor past the Earth at a distance of a half moon.

The asteroid, dubbed 2017 AG13, just look at only a few days before at the University of Arizona's Catalina Sky Survey.

It is between 50 and 111 feet (15-30 meters) in length, and when passing through the Earth on 9 January 2017, moved AG3 9.9 miles per second (16 kilometers per second).

' This is moving very fast, very close to us, ' said Eric Feldman, an astronomer with the Slooh, during a live broadcast from the flyby at 7:47 am on January 9 in.

"This one has a special elliptical orbit.

' Really cross the orbits of two planets Venus and Earth.

Sloohs broadcast says 2017 AG3 ' roughly the same size as the asteroid that hit the Chelyabinsk, Russia in 2013.0 ' which means that it has been hit, the effect has been similar.

The next Earth close approach is expected on December 28th, 2017.

It is not a common event, which is one of the reasons that attract» said Mark Sykes, President and CEO of the Planetary

Science Institute, Business Insider in an e-mail message.

About 38 more ' close ' as the asteroid approaches 2017 AG3 is expected in January, according to NASA'S near-Earth object Program.