I don't know how long "way past' is, but you can do the float test on those two eggs. Put them in water. They should float. If they wiggle around, they have live chicks in them. If they do not wiggle around, get rid of them.
The risk if them exploding has nothing to do with them starting to develop then quitting. The risk is that bacteria gets inside the egg. If bacteria gets inside, they will multiply and cause real problems, whether the egg is fertile or not, whether the egg has started to develop or not.
If those eggs are not viable, you have some options. You can break her from being broody just like WalkingOnSunshine said. It won't hurt her at all. I personally think it is cruel to let one stay broody if you are not going to give her a chance to have chicks. Being broody is hard on them. They don't eat, drink, or exercise enough if they stay on the nest that much. So breaking her is one option.
Another option is what Aoxa said, get a chick or two and give them to her. Get chicks as young as you can, preferably just a day or two old. Slip them under her at night after it is good and dark. Odds are tremendously high she will wake up the next morning, accept those chicks, and raise them. If you try this, you have to accept that she may not accept them and you will have to raise them yourself, but I'd have no hesitation in trying this. If you want day old chicks, you might post on your state thread in the "Where am I? Where are you?" section of this forum to try to find someone close by that can help you get a day old chick or two.
Yet another option is to get her a few fertile eggs and let her hatch them. If you try that, she will probably stay broody long enough to hatch them, and once she hatches them she wil raise them.
Good luck!
