I know this is old news by now, but I feel I owe him at least a few words. Brian Marsden passed away on the 18th of November.
His official title was director of the Minor Planet Center at the Harvard-Smithsonian Center for Astrophysics, but he was so much more than that. He was a walking encyclopedia of astronomy, an absolute genius. If you thought you'd found a new comet or asteroid, he was the guy you talked to. I was never involved in serious astronomy, but I sure had heard his name.
Sky and Telescope has a wonderful obituary and biography that says far more than I could possibly say.
Launch Report 2017-2 - LDRS-36
2 weeks ago