XR flew about 1.37 million miles (2.2M km) away from Earth. The space rock is estimated to be about 300-700 km (248-434 miles ...
New research shows that when an asteroid slammed into the moon billions of years ago, it carved out a pair of grand canyons ...
Astronomers have retracted the discovery of a new asteroid after realizing the object was the remains of Elon Musk's Tesla ...
The massive space rock with the risk of hitting Earth's surface within the next seven years has kept scientists on their toes ...