The Space perspective with Jeffrey Hoffman (besides having flown 5 times in the Shuttle, he is also an astrophysicist and MIT professor, the photo is actually him repairing the Hubble)

Policy rationale for Space Activities, with Hoffman too

Economic rationales for space Activities, with Cohendet (world-renown economist, professor in Strasbourg and Montreal)

I like the way we take notes: no paper (save trees!!), but writable PDF files (thanks Jorge for Acrobat 7.0)