Super Volcano under yellow Stone Larger than Thought.

For years everybody knew that the has been a volcano under Yellow Stone.  But recently there was a group of people that used seismic technology to look at that volcano under Yellow Stone and they found out that it was a lot bigger than anybody ever thought. Lucky even though they had found all this new magma there is no new threat of it going ka boom so that's good. The scientists put the odds of it exploding at 1 in 700,000 which is equivalent to getting struck by lighting.