A Matter of Some Gravity

I just got a copy of this press release in my work e-mail, and thought it was interesting enough to be worth passing on. Apparently astronomers have measured the speed of gravity for the first time. (It's equal to the speed of light, within an accuracy of 20%, just to save you the suspense.) Hmm, I wonder if I correlated any of that data? It's quite likely that I did, but the nature of my job is such that I don't actually know what kind of observation I'm working on unless I go and look it up.