Dust devils on Mars!

What does this image look like to you? Could it be a close up of a tattoo or a lizard's back or even silly putty that was rubbed on a news paper?

Centrifugal Instability of an Oscillating Boundary Layer

A cylinder twisting back and forth in water, produces a "centrifugal instability," as shown by fluorescent dye. This fluid pattern will not only help scientists better understand ocean dynamics, but it is also aesthetically beautiful.

Whole Lotta Shakin' Going On

Puny tremors may be the real movers and shakers of the seismic world.

Wholly Ozone

According to recent research, cosmic rays may be enlarging the hole in the ozone layer.

Crystal Clean

The chemical reactions that keep sulfur and other pollutants from leaving automobile tailpipes rely on catalysts in the form of microscopic particles dispersed within the large surface area of a porous material.