KEEP LOOKING UP: Jack Horkheimer: Star Gazer (nee Star Hustler), one of the great champions of public astronomy has died. Sure, it's nice to see Neil DeGrasse Tyson emerging to fill the niche once held by Carl Sagan, but Horkheimer provided simple, direct stargazing advice: this is up this week, check it out! in bite-sized, 1- and 5-minute bits. He will be missed.
