The truth about a terrifying lava skylight where only the trained should lurk

A lava skylight is not seen by most people as being particularly scary since it is just an opening in the roof above a lava tube from which the flowing lava can be seen. Dr. Laszlo Kestay, a volcanologist at the Astrogeology Science Center, explains this genuinely scary skylight that some people believe resembles a doorway to hell.