Prisma space dance; Asteroids splash high; Vibrating bones

Two Swedish spacecraft, designed to test formation flying techniques, approached within 7 meters of each other last week: Sweden’s Prisma satellites accomplish close approach – Spaceflight Now – Oct.25.10.Includes a series of pictures taken by one of the spacecraft of the other as they neared. === The impact of an asteroid in the 480-960 meter diameter range in the Pacific could affect the atmosphere in addition to the mighty wave that it would create: Asteroid would impact ozone layer – Science Fair/USA Today. === This sort of vibration treatment has been studied in space but I haven’t found any summary of its effectiveness in counteracting microgravity effects: Daily vibration may help aging bones stay healthy – Medical College of Georgia/Eurekalert – Oct.25.10 (via FuturePundit).

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