NASA captured a surreal “double rainbow” stretching 300 miles beside rare cloud vortices over Mexico, two striking atmospheric phenomena in one frame.

Fata Morgana is an optical illusion caused by a temperature inversion. One viewer caught this rare phenomenon along the North ...

Researchers at the Department of Energy's Oak Ridge National Laboratory are helping to pave a path for the eventual discovery of dark matter. With new approaches to measurement in the quantum realm, ...

For centuries, astronomers have watched brief, unexplained flashes light up the lunar surface, a phenomenon so persistent and ...