An unexpected discovery surprised a scientist: nanometer-sized diamond particles, which were intended for a completely different purpose, shone brightly in a magnetic resonance imaging experiment -- ...

From now on, Soviet chemists will have to watch their test tubes more carefully than ever: heresy may be lurking in any one of them. Last week the California Institute of Technology issued a report on ...

A newly discovered system of six planets circling a nearby Sun-like star may be the key to unlocking how planetary systems form. All between the size of Earth and Neptune, the worlds are orbiting in a ...