Stunning Discovery Post-Launch Video

The plume of exhaust from Space Shuttle Discovery's launch on Sunday (©Adam Bojanowski)
The plume of exhaust from Space Shuttle Discovery's launch on Sunday creating a bright white cloud (©Adam Bojanowski)

Watch the time-lapse movie after Discovery’s launch »

I compiled the pictures I took into a time lapse movie. The blue cloud appears to grow where the shuttle main engines passed through a particular layer of atmosphere. The cloud grew in coverage and changed from bright white to electric blue as it expanded.” — Adam Bojanowski

Note: The expanding vivid white cloud appears after tiny droplets of water condense and then freeze around particles in Discovery’s exhaust after passing through a saturated layer of atmosphere. The ice in this new cloud preferentially scattered the blue light from the setting Sun (this is called Rayleigh scattering, the same mechanism for giving the sky its blue hue).

Source: SpaceWeather.com

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