Science News

The public's thirst for vampires seems as endless as vampires' thirst for blood. Vampires are everywhere these days -- from best-selling novels to TV shows to blockbuster movies like "The Twilight Saga: New Moon," starring Robert Pattinson, left. But where did the modern idea of vampires come from? The answer lies in the gap between science and superstition.

Doctors may have discovered an unlikely tool to kill cancer cells: tiny metal discs, too small to be seen by the naked eye. The discs vibrate when subjected to a magnetic field, damaging and destroying the cancer cells around them. Researchers hope the technique will spare patients the painful side effects associated with radiation and chemotherapy.

On Dec. 9, 1965, people in Kecksburg, Pa., saw a ball of fire in the sky and an object land in the woods. After fighting to open government documents on the case, a journalist says she thinks the object was either a secret device or a UFO.

In California, a growing number of children with attention deficit hyperactivity disorder, or ADHD, are being treated with marijuana. This fact has sparked a heated debate. But as some doctors point out, the two most commonly prescribed medications for ADHD, Ritalin and Aderall, are essentially amphetamines. One expert even speculated that pot may prove to be a "wonder drug" for such patients.