Trinity Test

In the first successful test of an atomic weapon, the concrete and steel of the testing tower was vaporized instantly and the floor of the desert was turned into a bowl of glass 10 feet thick and 1000 feet wide.

Cosmic Blast

An extremely large solar flare (as if there's ever a small one) was followed by mind-blowing mass ejection that blasted billions of tons of atomic particles toward the Earth at 3 million miles per hour.