Red sprites are among a class of enigmatic weather phenomena that appear over thunderstorms, known as Transient Luminous ...

A sudden burst of red light flickered above a thunderstorm, and for a brief moment, Earth’s upper atmosphere revealed one of its most elusive secrets.

The Tecnis Symfony OptiBlue IOL, a violet light-filtering extended depth of focus lens implant, yielded positive vision ...

NASA astronaut Nichole Ayers photographed a rare atmospheric phenomenon over the US and Mexico known as a "sprite" that's ...

Scientists are working to understand the curious phenomena of red sprites, green ghosts and blue jets high above ...