Near an earth asteroid coming forwards to our planet, it cause a very very big destruction but it only 2700 chance for hitting.The danger asteroid name is bennu, it cause hit the earth.
NASA and Arizona university plan to launch the spacecraft on September 8, this efforts to reach the danger asteroid in August 2018.Rex will launch from Cape Canaveral, Florida on an Atlas V 411 rocket. Earth’s gravitational force ti create a path to the danger asteroid.
The spacecraft survey the danger asteroid clearly over two months after destroy the asteroid.After the final site selection touch to collect the asteroid surface sample, The arm contact with 5 secondswhich release a nitrogen gas, this will cause rocks & materials to be mixed up and capture in the sampler head. In march 2021, the departure from the asteroid will open and return to Earth.