Monday, April 19, 2010


Craters: are the leftovers of an impact. like an open wound on the earth or the moon. Their shape is irregular. the dirt leftover sinks.




  • Impact crater, caused by two celestial bodies impacting each other, such as a meteorite hitting a planet
  • Volcanic crater or caldera, formed by volcanic activity
  • Subsidence crater, from an underground (usually nuclear) explosion
  • A maar crater, a relief crater caused by a phreatic eruption or explosion
  • pit crater, a crater that forms through sinking of the surface and not as a vent for lava
  • Crater lake
  • Explosion crater, a hole formed in the ground produced by an explosion near or below the surface

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