Why do we scientists do what we do?
Because we love it. Because we're driven by the need to know, the need to understand, the need to explore what's around the next corner. And we'll dedicate our education, our career, and our lives to do it.
But I suspect some of us are just thrill-junkies. Like this guy:
Holy molten magma! Look, astronomy can be dangerous. Seriously; we work at high elevations, there's heavy equipment, and sometimes dangerous chemicals.
But that guy? Yikes. He should be more careful. Even if any spheroidal part of him were made of brass, that still has a melting point of 900° C, well below that of the lava he's trying to collect.