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Solar Physicist, Dean Pesnell, talks about the Solar Dynamic Observatory (SDO) and the Transit of Venus with the NASA EDGE.
Jim Garvin, Chief Scientist from NASA Goddard Space Flight Center, talks Transit of Venus with NASA EDGE.
NASA EDGE interviews NASA Planetary Scientist Gordon Chin for the 2012 Transit of Venus.
NASA EDGE Interviews Jim Green, NASA's Director of Planetary Science, ahead of the Transit of Venus.
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