1.   Sound can travel through water for enormous distances, prevented from dissipating its acoustic energy by boundaries in the ocean created by water layers of differing temperatures and densities.

2.   The free fat and released membrane materials disrupt thin water layers and burst more bubble walls.

3.   Divers drop through a murky, stinky water layer laced with sulfur, their lights illuminating a small cone of space in front of them.

4.   JPL released satellite images of the warmed, expanded water layer moving eastward during October, November and December, when it reached the coast of South America.