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The crews will hold a station change of command ceremony on Sept. 27. Thursday, Sept. 28, at 1:35 p.m. CDT, NASA TV will begin coverage of a farewell ceremony and closing of the hatches as the Expedition 13 crew and Ansari prepare to depart.
NASA - International Space Station
http://www.nasa.gov/mission_pages/station/main/index.html

The Hubble Space Telescope's most frequently used instrument, the Advanced Camera for Surveys (ACS), has shut down unexpectedly. Hubble's managers are still investigating the problem, but they are optimistic that they will be able to use the camera again soon.
Hubble's key camera shuts down again - space-tech - 27 September 2006 - New Scientist Space
http://www.newscientistspace.com/channel/space-tech/dn10162-hubbles-key-camera-shuts-down-again.html

Physics of small business success, dark matter gravitation, fibers for secret messages

"How fast does dark matter fall?
despite the fact that there is broad speculation regarding the true identity of dark matter and no guarantee that we will ever capture it or produce it in the lab,