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Archived September 6, 2008
September 6, 2008
NASA will award a Carl Sagan Fellowship for the study of planets outside the solar system
Avi Blizovsky
September 6, 2008
4 תגובות
A robotic helicopter can learn to fly by watching its friends
Dr.Roey Tsezana
September 6, 2008
7 תגובות
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