June 6, 2011 - Color My World

Published in cooperation with The Planetary Society

Spend the year in space, one week at a time

Recent Weeks

May 14, 2012 - Monkey Nebula

May 7, 2012 - Getting a Grip on INTELSAT

April 30, 2012 - Dust in the Wind

April 23, 2012 - Celebrate Astronomy Day

April 16, 2012 - Rover Rides Again

April 9, 2012 - Mercury’s Marvelous Morphology

April 2, 2012 - A Matter of Truss

March 26, 2012 - Hubble Bubble

March 19, 2012 - Rocket Pioneer Centennial

March 12, 2012 - Southern Lights on Saturn

March 5, 2012 - A New Star in Town

February 27, 2012 - Hubble Upgrade

February 20, 2012 - Sideways Supernova

February 13, 2012 - Auroras Gone Wild

February 6, 2012 - Hubble Telescope Tune-Up

January 30, 2012 - Lunar Orbiter Liftoff

January 23, 2012 - Magellan Turns up the Stereo

January 16, 2012 - Southern Sibling Sees Stars

January 9, 2012 - Hitching a Ride Home

January 2, 2012 - Transforming the Space Frontier

December 26, 2011 - These Laws Can't Be Broken

December 19, 2011 - Long and Winding Road

December 12, 2011 - Blast from the Past

December 5, 2011 - It’s Just Like Folding a Map

November 28, 2011 - A Warmer, Wetter Mars

November 21, 2011 - Spy in the Sky

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2012 Desk Calendar

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Weekly photo essay
Daily Moon phases
Night sky events
Space trivia
Holidays
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Customer Comment

This calendar is a winner every year. Even in this digital age, this calendar is an everyday inspiration!

--Edna E., Hicksville, NY

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The Week in Space

June 6-12, 2011

Color My World Many of us take color photographs for granted, but prior to 1861 only black and white images existed. That year, Scottish physicist and mathematician James Clerk Maxwell, who was born 180 years ago next week, devised a method of creating color photos by combining three separate black and white images taken with red, green, and blue filters. This tri-color photography method is still in use today, especially in astronomical imaging, where the “film” is really a monochrome CCD imager, and different filters are placed in front of it for each exposure. This image of a portion of NGC 7000 was made by combining several monochrome images filtered for different wavelengths of light. The resulting images were each assigned a color (red, green, or blue) and combined into the final image.

Image credit: Antonio Fernandez