Buffalo Bills quarterback Josh Allen has one brutal Kryptonite in his career, and it's not a single player, coach, team or venue. It's simply the function of NFL overtime.

KANSAS CITY, Mo. — For nearly four years, Lamar Jackson has been trying to live down the single time that he referred to the Kansas City Chiefs as the Baltimore Ravens’ kryptonite. And during that ...

For 80 years, fans have been following the adventures of Superman. The most die-hard fans have followed him across several different mediums. Superman has appeared in print, on the big and small ...

Photo by Chad Adkins Richard Gillespie welds motor mounts at Kryptonite Racecars. As the temperature in the shop neared 90 degrees, Richard Gillespie finished welding pieces of metal together. Taking ...

Kryptonite was first introduced in a Superman radio serial episode in 1943. In 2004, workers at a drill site in Serbia’s Jadar Valley extracted a white, earthy silicate material unlike any previously ...