When particles in volcanic ash cloud rub together, some pick up positive charge and others negative – now physicists have ...

Two microscopic grains collide and produce a tiny spark. This phenomenon may have provided the energy to kick off life on ...

Kepler-51d is a giant, ultra-light “super-puff” planet wrapped in an unusually thick haze that’s blocking scientists from ...

The familiar phenomenon has puzzled researchers for centuries, but experiments are finally making sense of its unruly ...

For decades, astronomers have struggled to differentiate giant planets from brown dwarfs, a class of objects more massive ...