Potential impactors are most likely to have low velocities and the highest likelihood of hitting Earth during the winter.

What would happen if a massive asteroid collided with Earth. “I will not allow Donald Trump to silence me”: Army combat ...

Asteroid 2024 YR4 will not hit Earth, but it has forced planetary defense experts to confront a different kind of worst case: ...

New observations show that asteroid 1998 KY26 is a mere 11 meters across and spinning twice as fast as previously thought.

The quiet arrival offers another indication that the sun is moving into the declining phase of its 11-year cycle.

Scientists have proposed a shocking new theory for the origin of the moon, and their calculations suggest Earth once had a ...