YR4 were to strike Earth, the energy released could be equivalent to 8 megatons of TNT, capable of devastating an area the size of Washington, D.C ...
Asteroids that orbit close to the Earth inevitably cause us some anxiety due to the even remote possibility of a collision.
The space rock is heading in our direction at some 18,700 miles per hour, according to the space agency's data.
Astronomers have been keeping a close eye on an asteroid between 130 and 300 feet long that has a very small chance of crashing into Earth in less than eight years. And as they learn more about ...
YR4 is currently being monitored by NASA and the European Space Agency, with the space rock potentially set to strike Earth ...