Scientists caution that asteroid deflection must be precise, as striking the wrong spot risks sending it through a ...

In 2029, asteroid Apophis will skim safely past Earth, where it will be visible to billions. For scientists, it's a once-in-a ...

A meteor is a broken fragment of rock from space, such as debris from an asteroid collision, that enters Earth's atmosphere. They are typically visible at night as they make fast-moving streaks ...