This is LAGEOS. Since 1976, this perfect disco sphere has been orbiting Earth carrying 426 cube corner reflectors made of fused silica glass—except four, made of germanium. It also contains a coded message, designed by Dr. Carl Sagan.
The message was duplicated in two 4 x 7-inch stainless steel plates and contains several codes telling things about Earth. The first…
ContinueAdded by Morgan Matthew on May 11, 2011 at 10:31am — 2 Comments
Started by Unseen in Miscellaneous Sciences. Last reply by Matt Giwer 9 minutes ago. 9 Replies 1 Like
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