Scientists have discovered an ultra-large structure in the distant universe that calls into question our understanding of the cosmos. The newly uncovered "Big Ring on the Sky" is the second ...

WEST LAFAYETTE, Ind. — One of the first things the general of any army does before a battle is scout the terrain. Without seeing and understanding the battlefield, the issues of tactics, strategy and ...

Electron motion in chemical bonds occurs on an attosecond timescale. This ultrafast motion can be driven by strong laser fields. Ultrashort asymmetric laser pulses are known to direct electrons to a ...