The Big Picture usually has many striking pictures of various events and locations, and this one is not any different. A couple of scientists or researchers want to get REALLY CLOSE to an active volvano.
Above you see my favorite picture which shows a person really close to the crater and also gives a sense of scale. There is another picture with a person standing right on top of the rim!
I believe all the nice pictures, including the one above, are by photographer Olivier Grunewald.