![Mars exploration / Space Shuttle program / Space exploration / Space Shuttle retirement / Manned mission to Mars / NASA / International Space Station / Space Exploration Alliance / Propellant depot / Spaceflight / Human spaceflight / Space policy Mars exploration / Space Shuttle program / Space exploration / Space Shuttle retirement / Manned mission to Mars / NASA / International Space Station / Space Exploration Alliance / Propellant depot / Spaceflight / Human spaceflight / Space policy](https://www.pdfsearch.io/img/544ad3a36e64221478a9f4f62f87132b.jpg) Date: 2012-02-27 06:47:42Mars exploration Space Shuttle program Space exploration Space Shuttle retirement Manned mission to Mars NASA International Space Station Space Exploration Alliance Propellant depot Spaceflight Human spaceflight Space policy | | It is a vital national imperative for the United States government to set our nation’s space program on an ambitious, yet sustainable, path. Only by reaching consensus on our long-term goals in space, and the short-terAdd to Reading ListSource URL: www.nss.orgDownload Document from Source Website File Size: 391,80 KBShare Document on Facebook
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