January 20, 2009 Science Source
EN_00304854_0313
![January 20, 2009 Science Source](img/medium/arch0/dvd0471/24/EN_00304854_0313.jpg)
Brian Marsden, Harvard-Smithsonian Center for Astrophysics' chief astronomer, stands next to the 15-inch Great Refractor, built in the 1840's.
2010-01-05
EAST NEWS
Science Source
Baback Tafreshi
bl4276
1,41MB
20cm x 30cm by 300dpi
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