Optical rotatum” is the term researchers coined to describe a newly discovered structure of light. Beams of light that can be shaped into corkscrew-like forms, known as optical vortices, are used ...

It was like a giant light bar,” reports a witness who recorded a video of a large luminous object floating across the night ...

Several News On 6 and News 9 viewers reported seeing a line of lights moving across the night sky, prompting speculation ...

NEW YORK -- A newly discovered green comet tracked by telescopes has likely broken apart as it swung by the sun, dashing hopes of a naked-eye spectacle.