In Disney’s 1975 classic Escape from Witch Mountain, one of the film’s mysterious interstellar twins carries with her the Star Case, s small box with a picture of two stars next to one another. That’s where I learned about binary stars — two stars that orbit around one another and depend on each other for survival. Last week, Lemmy Kilmister, lead singer of the band Motorhead passed away at the age of 70. Last night was David Bowie’s turn. He was 69. I discovered Motorhead on MTV’s Headbanger’s Ball back in the late 80s. After a couple of hours of… (read more)