Semiconductor transistors now switch states in single-digit picoseconds, enabling processors to flip billions of logic gates ...

The Hawaiian Islands are riding the Pacific Plate on a slow, steady course toward Japan, closing the gap by a few centimeters ...

Solar flares are the most explosive energy-release events in the solar corona, leading to intense particle acceleration, plasma heating and bulk plasma motions on short timescales. Core questions ...

While adversaries and terrorist networks have historically pursued complex biological or chemical weapons like anthrax or ...