The U.S. also carried out 45 “airburst” tests

The report also notes that the U.S. carried out 45 “airburst” tests, the likes of which involved detonating nuclear bombs in the Earth’s upper atmosphere. These tests were conducted by shooting a rocket into the atmosphere that would be “armed to burst at a predetermined point in space,” one study notes. The above photo shows what looks like a photo of the sun but is actually visual capture of a nuclear bomb being blown up in the sky. In at least one instance, the government reportedly had volunteers stand under one such airburst explosion to test the health impacts it would have on people standing beneath one.