NY Times has a gallery dedicated to The Bomb:
The faint crescent below the fireball is the shockwave bouncing off the desert.
It turns out nukes are effective against airships from at least five miles (the shockwave collapsed the blimp)
If it wasn’t for the shockwave this could be a photo of a hazy sunset.
The collection also contains an atomic cannon, the famous shot from Bikini atoll and a series of a school bus getting pretty seriously burnt, then blown out, then burnt again (no test shots of fridges though).
There are also some cool/weird shots of the early stages of the expanding fireball:
This image isn’t in the gallery but is of the first nuclear detonation (Trinity):
The (very small) black dots in the foreground are trees, the big blob is a fireball 200m wide.