NASA、国際宇宙ステーションへの物資輸送で3社と契約 - 1社は小型シャトル

【参考】

・NASA Awards International Space Station Cargo Transport Contracts | NASA
http://www.nasa.gov/press-release/nasa-awards-international-space-station-cargo-transport-contracts
・NASA Selects Orbital ATK for New 8-Year Contract to Deliver Cargo to the International Space Station
https://www.orbitalatk.com/news-room/release.asp?prid=112
・NASA Selects Sierra Nevada Corporation’s Dream Cha... | SNC | Sierra Nevada Corporation
http://www.sncorp.com/AboutUs/NewsDetails/2754