A collision that changed everything Around 3.8 billion years ago, an asteroid or comet crashed into the Moon near its south pole. The impact, happening at an extremely high speed, created two ...

The object that struck the moon is estimated to have been about 15 mile in diameter, larger than the asteroid ... was launched into space above the lunar surface before it came crashing back ...

New research shows that when an asteroid slammed into the moon billions of years ago, it carved out a pair of grand canyons on the lunar far side. That's good news for scientists and NASA ...

The object that struck the moon is estimated to have been about 15 miles (25 km) in diameter, larger than the asteroid ... launched into space above the lunar surface before it came crashing ...