Earthshine occurs due to a double reflection of sunlight. Light from the Sun is reflected off of the Earth onto the Moon some of this light is then reflected off of the Moon back towards the Earth. Because of this we see part of the Moon illuminated by the Sun and the rest of the Moon dimly illuminated by this doubly reflected light (which we call earthshine). Each time light reflects off a surface (like a planet), it gets dimmer because some of the light is absorbed by the reflecting surface. This means that earthshine is dimmer than moonlight because earthshine is sunlight that has been reflected twice and moonlight is sunlight that has been reflected only once (off the surface of the moon). In addition, the reflectivity of the moon (its "albedo") is less than that of the Earth, which makes earthshine even dimmer.
Cyndi Lauper came up with the title "Time After Time" when she saw it in TV Guide magazine. It's the name of a 1979 movie about a man who invents a time machine.
Bruce Springsteen's "Born In The U.S.A." was inspired by the book (later a movie) Born On The Fourth Of July by Ron Kovic, a Vietnam veteran who protested the war when he returned home.
The moans of pleasure in the Guns N' Roses song "Rocket Queen" are authentic.
The first #1 hit with the word "disco" in the title wasn't a disco song. It was an R&B song called "Disco Lady" by Johnnie Taylor in 1976. The lady he's singing about is disco, but the song isn't.
Some songs get a second life when they find a new audience through a movie, commercial, TV show, or even the Internet.
Dave explains how the video appropriated the meaning of "Runaway Train," and what he thought of getting parodied by Weird Al.
You know the scenes - Tom Cruise in his own pants-off dance off, Molly Ringwald celebrating her birthday - but do you remember what song is playing?
The Evanescence frontwoman on the songs that have shifted meaning and her foray into kids' music.
A band so baffling, even their names were contrived. Check your score in the Ramones version of Fact or Fiction.
Roger tells the stories behind some of his biggest hits, including "Give a Little Bit," "Take the Long Way Home" and "The Logical Song."
