Tropical fish are among the most popular pets in the world, with millions sold every year to brighten aquariums in homes, offices, and even car dealerships. Yet behind their vibrant colors lies a ...

In a tank on the bottom floor of a University of Chicago research laboratory, scientists summon "The Blob" into existence by firing water jets to create an artfully choreographed series of rings.

When you think of tanks, rumbling fortresses of armor and firepower usually come to mind. Over a century of use and technological upgrades have solidified this image along with the tank's role on the ...