Help Finding a Story

My dad needs help finding a short story/book he once read. I'm wondering if I described what he told me, reddit could help me locate whatever it was.

He thinks it was a female author, but he isn't sure. He described it as if it was from the POV of a female scientist who was trying to speak/find God. He also mentioned that there was a nuclear war in Africa, and a species of moth evolved. Meanwhile, this female scientist ends up finding this mysterious "God" and it turns out that "God" didn't even know we existed. It was like a giant omnipresent eye swinging towards Earth. We we're suddenly it's main attention, which wasn't a good thing. It was a terrifying thing. We we're like moths to this "Being" and we suddenly had it's attention. At the end of the story, she's sitting somewhere and a moth hits the window, and the short story or book ends. Basically, they found "God" and it wasn't what they were expecting.

Any ideas?