12. Covering Up

Even when an asteroid or a meteorite makes a landing close to home, there won’t be any remains or craters left behind. Geological activity, such as weather and volcano eruptions, erode signs of impact on Earth. But since the moon has none of this, all the evidence is left on its crater-covered face. And even though astronauts have so far been able to evade these hazardous showers, there’s one peril that can’t be ignored on the moon. Photo Credit: Sophia Groves/Getty Images