mca 發表於 2009-9-16 13:30:58

In search of dark asteroids (by infrared)

coming soon

http://science.nasa.gov/headlines/y2009/15sep_ninjaastronomy.htm


It is interesting to note that the new generation WISE infrared space telescope is much smaller in size than older models (because of using solid hydrogen as coolant), and its 40-cm primary mirror is GOLD coated !

http://wise.ssl.berkeley.edu/gallery_h6.html

Bill, you may be interested to note: one goal of WISE is to find the closest stars to the Sun.
http://wise.ssl.berkeley.edu/sb/documents/FactSheet.2009.9.09_web.pdfed

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