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Pastimes : IT CAME FROM OUTER SPACE -- Ignore unavailable to you. Want to Upgrade?

To: Volsi Mimir who wrote (467)6/17/2005 11:53:39 AM
From: kinkblot  Read Replies (2) | Respond to of 480
 
Cosmos 1 solar sail

planetary.org
online.wsj.com

If the sails unfurl, Cosmos 1 will ride on sunbeams. Sunshine may not feel like much, but calculations show that in the void of space it can accelerate Cosmos 1 to 195 miles an hour after one day, and to 10,000 mph after 100. The ship is unlikely to last that long, though. Built as a proof of principle, its 0.005-millimeter-thick sails will degrade, and it should fall back to Earth as a fireball after a month.

Launch is scheduled for June 21st, the summer solstice.



To: Volsi Mimir who wrote (467)3/17/2006 4:36:59 PM
From: kinkblot  Respond to of 480
 
Wilkinson Microwave Anisotropy Probe: 3-year data

wmap.gsfc.nasa.gov

wmap.gsfc.nasa.gov
lambda.gsfc.nasa.gov

Observed angular spectrum of fluctuations is an important test of theoretical predictions.


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