Experts are using powerful telescopes in a desperate bit to discover how close Asteroid 2000 ET70 is going to come to thundering into earth.
The recently discovered two mile wide space rock caused enough of a stir among astronomers from several American universities that they labelled it a “potentially hazardous asteroid”.
According to NASA, “little is known” about the fist shaped asteroid.
An object of this size has the potential to cause carnage on earth, leading to huge earthquakes, tidal waves and general apocalyptic scenes.
The possibly deadly rock has already passed earth once, in 2012, when it came within 18 lunar distances – very close for a body of its size.
But scientists fear it could return in the coming decades, when it is expected to pass much closer, leading to fears of a potential direct hit.
However, NASA has sought to quash fears of a doomsday-style obliteration of our planet.
A spokesman said: “NASA knows of no asteroid or comet currently on a collision course with Earth, so the probability of a major collision is quite small.
“In fact, as best as we can tell, no large object is likely to strike the Earth any time in the next several hundred years.”
NASA added: “NASA has also made asteroid detection a top priority, and are developing strategies for identifying asteroids that could pose a risk to our planet.”
It comes after experts warned asteroids big enough to crush cities could be bound for Earth and we would have no idea they are coming.