Radiant (meteor shower) move along the comet's wake, and when the Earth moves through such debris, a meteor shower results. Because all of the debris is moving in roughly the same direction, the meteors which strike the atmosphere all "point" back to the direction of the comet's path. As an exception, the Geminids are a shower caused by the object 3200 Phaethon, which is thought to be a Palladian asteroid. The radiant is an important factor in observation. If the radiant point is at or below the horizon, then few if any meteors will be observed. This is because the atmosphere shields the
The Times They Are a-Changin' (song) Jay Leno Show" after being told that he had to "earn" a clip from his film "" to be shown. The 2009 film "Watchmen", a neo noir superhero film directed by Zack Snyder used "The Times They Are a-Changing" as the background music to the opening titles. On December 10, 2010, Dylan's hand-written lyrics of the song were sold at auction at Sotheby's, in New York, for $422,500. They were purchased by a hedge fund manager. The song is included in "The 500 Songs That Shaped Rock and Roll", a permanent exhibit at the Rock and Roll Hall of Fame.