Astronomer John Huchra died October 8 at the age of 61.
He was best known for his work determining the Hubble constant (which describes how fast the universe expands) and for discovering, with Margaret Geller, the Great Wall of galaxy clusters, one of the largest known structures in the universe. He was a professor at Harvard, past president of the American Astronomical Society, and a member of the National Academy of Science. On a personal note, I met him very briefly once when I was in college, and he seemed to be just as nice of a person as all the online reminiscences say. He was certainly more than happy to come talk to all the young interns who didn't have enough sense to know how important he was.
