Steve Kudlacek is an undergraduate at the University of California, Irvine who helped Professor Greg Weiss develop a way to unboil an egg. Steve Zylius/UC Irvine Communications hide caption

itoggle caption Steve Zylius/UC Irvine Communications

Many of life's building blocks can be found in the objects bombarding Earth from outer space. Does that mean that life, too, developed elsewhere before arriving here? Mary P. Hrybyk-Keith/NASA hide caption

itoggle caption Mary P. Hrybyk-Keith/NASA

For centuries, Russians believed putting a brown frog in their milk would keep it fresh. Now scientists are finding chemicals in the frog's slimy goo that inhibit the growth of bacteria and fungi. Stefan Arendt/Corbis hide caption

itoggle caption Stefan Arendt/Corbis