TOLEDO, Ohio — The semifinalists in Toledo's flag design competition were announced Thursday, more than two years after the city announced it was considering changing the design.

A study shows photon momentum enables diagonal transitions, converting indirect semiconductors like silicon into direct ones, ...

How is it possible for the ISS to stay in orbit? Learn more about the science behind orbiting Earth and more in this NASA ...

Momentum investing is all about the idea of following a stock's recent trend, which can be in either direction. In the 'long' context, investors will essentially be "buying high, but hoping to sell ...