![Exploration of the Moon / Space exploration / Phobos / Moon landing / Spacecraft / Flexible path / Vision for Space Exploration / Mars landing / Mars / Spaceflight / Human spaceflight / Mars exploration Exploration of the Moon / Space exploration / Phobos / Moon landing / Spacecraft / Flexible path / Vision for Space Exploration / Mars landing / Mars / Spaceflight / Human spaceflight / Mars exploration](https://www.pdfsearch.io/img/c579df9e58e96c3b0b593cf4100ca7c7.jpg) Date: 2009-08-26 02:01:01Exploration of the Moon Space exploration Phobos Moon landing Spacecraft Flexible path Vision for Space Exploration Mars landing Mars Spaceflight Human spaceflight Mars exploration | | Stepping-stones to Mars—An Alternate Strategy James Oberg AD ASTRA magazine, Winter 2007 While the most obvious progression of deep-space voyages is to the surface of the Moon and then to the surface of Mars, for decadAdd to Reading ListSource URL: www.jamesoberg.comDownload Document from Source Website File Size: 45,25 KBShare Document on Facebook
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