Discover step-by-step how to make a perfect silicone mold right at home! This easy DIY guide shows you the materials, tips, and tricks you need to create molds for crafts, resin, candles, and more.

DNA evidence, with its high-tech luster, often grabs all the headlines. But latent prints, that old-fashioned staple of forensic science, are still a cornerstone of criminal investigations.

Demonstrated in rabbits, the 3-D printer might someday print bone grafts directly onto fractures, complete with antibiotics to ease healing.