18 September 2011

TECHNOLOGY - A trip on the ISS

How amazing to watch the earth as the International Space Station whizzes past. This video was made by James Drake from a long series of still images. You can see land, ocean, clouds, cities, and thunderstorms as well as the edge of the atmosphere and a brilliant sunrise.


For best results view the video in HD at YouTube. Visit the item on James Drake's blog for more information. But meanwhile consider just what you've been seeing...

The Space Station (ISS) orbits up to 16 times daily at a height of 280 to 450 km and typically travels at 27 700 km/hr. The stars, city lights, and thunderstorms cannot be seen in the brightness of full daylight. The general illumination in the video is probably moonlight.

The forward looking camera is fixed so the structure of the station doesn't move in the video; and the earth rolls past beneath (although it's really the ISS that is moving). The track here is north to south, covering almost half way around the globe beginning over Canada and finishing neat Antarctica. At normal speed the video would last around forty minutes, but it's been speeded up.

Seeing this left me quite stunned. The beauty of the night-time earth and the brilliance of the arrival of day are so beautiful. And just think of all the people living their lives down below. Both North and South America pass below during this one brief video.

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