ACCELERATING EDUCATION

ACCELERATING EDUCATION
Physics keeps life going-物理 依据 生命

Δευτέρα, 16 Σεπτεμβρίου 2013

ASTRONOMY









NICE PHOTO


NASA's Voyager 1 spacecraft nearly 12 billion miles from Earth is still phoning home from interstellar space, and a new NASA photo captures that radio signal as pale blue speck in a cosmic ocean. 






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