Add Yahoo as a preferred source to see more of our stories on Google. A Penn State-led study reveals the hidden chain reaction that starts lightning, linking electrons, X-rays, and gamma rays. (CREDIT ...

For centuries, witnesses have described luminous spheres appearing during or after thunderstorms. The reported objects may hover, drift, pass near buildings and vanish quietly or with a sharp sound, ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. A new study suggests that cloud-to-ground lightning might have been key ...

HOMEMADE. Researchers made this glowing blob, about 6 centimeters across, which may resemble the elusive lightning balls that occur in nature. To see a video clip of the fireball being formed, click ...

A green spectacle. With protective eyewear, ISTA PHD student Andrea Stöllner takes a glimpse into the experimental chamber (in the foreground) where two laser beams trap a single particle. One ...

He found that the same electron cascade process could explain these events when conditions fall just short of producing lightning. By understanding how small changes in electric field strength affect ...