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File:Mark Vande Hei talk - NASA logo over Earth.jpg
来自维基百科，自由的百科全书
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File:Mark Vande Hei talk - NASA logo over Earth.jpg
Description
Mark
Vande
Hei
talk
-
NASA
logo
over
Earth
.
jpg
English: Picture of astronaut
Mark
Vande
Hei
from a
talk
that he gave at the College of St.
