10 November 2005 - 1121
![This is a photo of a skylight in roof of PKK lava tube.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/1121.jpg?itok=_3-qvpOY)
Detailed Description
Looking into skylight in roof of PKK lava tube. Deeper color is lava, darker is incandescent wall of tube, and brighter is sunlight on roof and wall of tube. 1121.
Sources/Usage
Public Domain.
Looking into skylight in roof of PKK lava tube. Deeper color is lava, darker is incandescent wall of tube, and brighter is sunlight on roof and wall of tube. 1121.
Public Domain.