"The ISS National Lab supports a variety of platforms to exploit the space environment in the development and testing of new materials for both commercial and academic investigators. Through these solicitations, CASIS continues in its mission to promote the full utilization of the ISS. ... This RFP will utilize the NanoRacks External Platform."
"NanoRacks, the leading company in low-earth orbit research and educational utilization, seeks to further stimulate the market for International Space Station usage by offering to designate and promote up to five (5) companies that can offer for retail sale NanoLabs for use in NanoRacks hardware now on the space station and on suborbital platforms."
Keith's note: CASIS makes a big deal out of its agreement with Nanoracks - but they don't seem to be interested in making any mention of this Nanoracks Announcement of Opportunity utilizing the ISS. Baffling - especially given the bundle of money CASIS gave Nanoracks.