Image Source: NASA Space Shuttle STS093-709-51, Cropped
Date: 25 July 1999

Comments: These two superb NASA images show a plume from Manam Island, north of the mainland. The shadow of the plume is visible over the water on the above image. North is to the left in the above image, and to the lower left in the image below.

Image Source: NASA Space Shuttle STS093-708-32
Date: 25 July 1999