Time Fragments: Salvation or Destruction
It is the year 2062. The existence of wormholes has been naturally proven, but no one has succeeded in stabilizing and entering a natural wormhole. A team of five scientists in a secret NASA laboratory successfully produces and stabilizes a small wormhole, and when they enter it, they travel back to July 23, 1945, two weeks before the atomic bombing of Hiroshima and Nagasaki.