No doubt Kant would be genuinely surprised that science has had an easier time exploring "the starry heavens above" than comprehending "the moral law within." But progress is being made. For this week's online essay, go read Steven Pinker's article "The Moral Instinct," a long essay published in the New York Times (hat tip: Concurring Opinions). As posted, it has 8 segments to it, but I finally discovered the "one page" and "print" options in a small box at the top of the first page -- very nice. Thank you NYT.
I have only read the first page or two -- I might chime in with some quotes in the comments. I have been very interested in this topic after reading Evolutionary Psychology, which happens to be a textbook but a very readable one. Here's one quote from the Pinker essay to get you started:
So dissecting moral intuitions is no small matter. If morality is a mere trick of the brain, some may fear, our very grounds for being moral could be eroded. Yet as we shall see, the science of the moral sense can instead be seen as a way to strengthen those grounds, by clarifying what morality is and how it should steer our actions.
Obviously, you don't have to buy into all the author's views or assumptions about morality to learn something from the article anymore than you have to buy into the atheistic views or assumptions of nonbelieving scientists when reading their books or articles on cosmology or evolution.