Hubble Space Telescope black holes in galaxies is thus to demonstrate a deep connection between galaxies and their central black holes. The collision of Comet Shoemaker-Levy 9 with Jupiter in 1994 was fortuitously timed for astronomers, coming just a few months after Servicing Mission 1 had restored Hubble's optical performance. Hubble images of the planet were sharper than any taken since the passage of Voyager 2 in 1979, and were crucial in studying the dynamics of the collision of a comet with Jupiter, an event believed to occur once every few centuries. Other discoveries made with Hubble data include proto-planetary disks (proplyds) in
The Elves and the Shoemaker cartoon short "Holiday for Shoestrings". In the "Due South" episode, "The Deal", Det. Ray Vecchio vaguely recollects this story when discussing a poor cobbler with his partner, Constable Fraser. In "", a spinoff miniseries of the Vertigo comic-book series "Fables", the shoemaker appears as an employee in Cinderella's shoe store, while the elves are the builders and suppliers of the store's inventory. "Muppet Classic Theater" had a version where a shoemaker (played by Kermit the Frog) faces ruin until his livelihood is saved by a group of philanthropic entertainers (played by The Elvises) who, naturally, make only blue suede shoes.