"An asteroid this size impacts Earth on average every few thousand years and could cause severe damage to a local region," the European Space Agency said.
Astronomers mistook a car SpaceX blasted into space years ago as an asteroid. The brief mix-up highlights the sometimes difficult pursuit of tracking deep-space objects.
A recently released animation shows a new look at a large asteroid that has a small, but significant chance of impacting planet Earth in 7 years. The animation, provided by the NASA-funded ...