Photonic Torpedoes

The name of the planet Earth is derived from Old English and Old Germanic languages. It is the only planet name not derived from Greek or Roman mythology.

http://www.fboweb.com/ tracks incoming flights to a number of airports *inside Google Earth*, including my own Atlanta Hartsfield Jackson.

Civil Twilight lasts from sunset until the sun is 6° below the horizon, which is roughly half an hour in the continental United States.

Twilight on Mars can last several hours as dust storms in the atmosphere scatter sunlight to the night side of the planet.

Mars Exploration Rover Spirit took the first photo of the Earth from the surface of another planet on the 63rd martian day of its mission (March 11, 2004 on Earth).