January 5, 2008: Arizona State University researchers have assembled intricate structures using as their medium the double-helical DNA molecule, a versatile building material offering near limitless construction potential.
January 5, 2008: Abundant tiny particles of diamond dust exist in sediments dating to 12,900 years ago at six North American sites, adding strong evidence for Earth’s impact with a rare swarm of carbon-and-water-rich comets or carbonaceous chondrites, reports a nine-member scientific team.