A massive asteroid named Apophis after the Egyptian god of chaos will safely pass Earth - but experts warn it could still collide with Earth in 2068.
The 340-metre wide space rock will be about 16 million km from the Earth when it makes its closest approach at about 01:15 GMT on Saturday March 6.
Apophis was discovered on June 19, 2004 by astronomers at the Kitt Peak National Observatory in Arizona and since then it has been tracked as it orbits the sun.
If the massive space rock were to hit the Earth in 2068 the impact would be equivalent to 880 million tons of trinitrotoluene (TNT) exploding all at once.
This year astronomers say there is no chance of it colliding with the Earth as its closest approach will be 44 times further out than the moon is to the planet.