Who knew there were so many volcanoes in the news? If you were a volcano blogger like Dr. Erik Klemetti, you'd keep up with these kinds of things. Now he's posted the volcanic activity from each month of 2009. Shown...

Lava explodes and flows in different forms. How many of these are you familiar with?The explosive nature of these fascinating geological mountains provide us with a time line of earth's past, they create chains of living...