Yellowstone National Park’s Steamboat Geyser just erupted for the third time in two months, and scientists aren’t sure why.  It doesn’t erupt very often, but when it does, it is the tallest active geyser in the world. The Steamboat Geyser — known to eject a column of water 300 feet in the air — erupted for

the third time April 27.  “It is a spectacular geyser. When it erupts, it generally has very big eruptions,” Michael Poland, the US Geological Survey’s scientist-in-charge of the Yellowstone Volcano Observatory, wrote in an email.  According to seismicity data, the recent eruptions have been a little bit smaller than in the past. Even if these latest eruptions are smaller, they are still impressive compared with, say, Old Faithful.  READ MORE