This tiny smudge left in black tar might finally expose ruthless attackers.

Add Yahoo as a preferred source to see more of our stories on Google. Levitating matter with sound. Experimental setup with an acoustically levitated particle of silica. (CREDIT: Thomas Zauner/ISTA) ...

In Ghost, author Jim Bellisle tells the story of an intuitive canine whose instincts lead to the discovery of a mystery buried for centuries. NEW YORK CITY, NY ...

Rub two identical pieces of glass together and something strange happens. One picks up a positive charge. The other goes negative. This much has been known for centuries. What nobody could explain was ...