The Week in SpaceDecember 14-20, 2009
1.5 Billion Mile Checkup With only two of its six gyroscopes functioning properly, the aging Hubble Space Telescope suspended science operations in November 1999, while it awaited its third scheduled servicing mission. Launched ten years ago this week, the STS-103 mission was highlighted by twenty-four hours of spacewalks over three days to refurbish the ailing Hubble, which had traveled nearly 1.5 billion miles since its 1990 launch. In addition to replacing all six of Hubble’s gyroscopes, astronauts on board the shuttle Discovery installed an advanced computer that was twenty times faster and had six times more memory than its predecessor. Other enhancements included a new fine guidance sensor, new insulation, and a new solid-state data recorder to replace the old reel-to-reel one. Weekly CalendarDecember 14-20, 2009Holidays - Sky Events - Space History
|
Customer Comments
If I could, I would put this calendar on automatic reorder. I will buy it every year for a lifetime. I read it, use it and love it. Thanks for such a great product.--Rebecca P., Steubenville, OH
Suggestions for new history dates or better links? Corrections for errors on this page? Please e-mail me.






Tuesday 15
Friday 18
Sunday 20












