Asteroid will miss Earth in one of closest approaches ever: NASA

This diagram made available by NASA shows, in red, the estimated trajectory of asteroid 2023 BU as it passes near Earth [NASA/JPL-Caltech]

An asteroid the size of a truck is expected to pass by Earth in one of the closest approaches ever recorded, scientists say.

The United States federal space agency NASA said on Wednesday that the recently discovered asteroid would zip by about 3,600 kilometres (2,200 miles) above the tip of South America.