Though experiment for the theists.
If a large space rock is headed for Earth that will cause a mass extinction the likes of which hasn't been seen for 250 million years, will you consider it to be an act of God? Would it be a sign that God wants to end life on Earth, rapture style? Or would you want us to make an effort to stop it, like they did in the movie Armageddon? Think about it, because that day may come.