VHP Photo Glossary: Skylight
Scientist takes advantage of a skylight to measure height of lava flowing in a lava tube, Kilauea Volcano, Hawai`i
SkylightA skylight is an opening in the roof of a lava tube. Skylights usually form when part of the roof collapses into the tube, but they also occur where a roof failed to form over the lava channel. If the tube is active, a stream of glowing lava can be seen moving below.
Related photo glossary terms: