Night in a volcano, Ken Sims' explosive research

Ken Sims, a professor of isotope geology, explores active volcanoes to study and forecast eruptions. He describes the unique experience of spending nights in volcano craters, surrounded by lava lakes and toxic gases. Despite the challenges, the mesmerizing view and the significance of volcanoes in Earth's formation make the experience worthwhile.

Describe the visual and sensory experiences one might encounter when looking at a lava lake.

What does Ken Sims imply about the significance of volcanoes in relation to the Earth's surface?