Sable-3 photo balloon into space

Sunday 26 August 2007This is 17 years old. Be careful.

Here’s a cool amateur project: SABLE-3 is a helium balloon with a camera payload that rose to 117,000 feet about the earth, high enough to see the edge of the atmosphere. It took 2½ hours to rise, then 45 minutes to fall back to the ground to recover the photos.

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