Hydrogen bombs cause a bigger explosion, which means the shock waves, blast, heat and radiation all have larger reach than an atomic bomb, according to Edward Morse, a professor of nuclear engineering at University of California, Berkeley.

The most immediate concern is roughly 970 pounds (441 kilograms) of highly enriched uranium containing 60% of the U-235 isotope that is relatively easy to split. That’s what Iran was believed to have before the summer 2025 bombings, and much of it reportedly survived those strikes.

In 1994, astronomers witnessed one of the most dramatic events ever recorded in space when comet Shoemaker–Levy 9 smashed into Jupiter. Traveling at more than 216,000 km/h, the comet broke into 21 fragments that struck the planet over six days,

While it may sound like a bombastic action movie, many genuinely fear a potential nuclear war. Here's a possible Georgia target and supplies to pack.

Can Iran bomb the U.S.? Does Iran have nuclear weapons? These are the closest potential targets to Wilmington.