NASA astronaut Nichole Ayers captured an electrifying image of a giant lightning "sprite" shooting up over Mexico and ...

On the eve of the 249th anniversary of American independence, NASA on Tuesday showcased a patriotic image of Old Glory as ...

A new blue fluorescent molecule set new top emission efficiencies in both solid and liquid states, according to a University ...

The annual celebration of our Independence Day will dazzle the skies but will come with more sizzling heat with air quality ...