I’m also on Voyager! I tried all the other apps too but this one had most or all the features I missed from Apollo!

4 types of ways to detonate a nuke, the one in Hiroshima and Nagasaki were air blasts, meaning they blew up before hitting the ground. Also, only less than 1 gram of the uranium actually got converted into energy. Because it didn’t touch the ground, radioactive material didn’t mix with the dirt and rubble and get thrown back in the air. All the radiation was gone within 24 hours.