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 ...

On Saturday, May 16, a severe storm ripped through Oklahoma and surrounding states. Videographer Matt Skuta was able to capture some incredible slow-motion footage of the storm above Norman, just ...

35,902 people played the daily Crossword recently. Can you solve it faster than others?35,902 people played the daily Crossword recently. Can you solve it faster than others?

Connecting Lightning to Gamma Ray Flashes One of the most important parts of the study explains a strange phenomenon known as terrestrial gamma-ray flashes, or TGFs. These are intense bursts of gamma ...