WeTitan Saturn System Mission (TSSM) was a joint NASA/ESA proposal for an exploration of Saturn and its moons Titan and Enceladus,[1] where many complex phenomena were revealed by the Cassini–Huygens mission. With an estimated NASA cost of $2.5 Billion (FY07), TSSM is proposed to launch in 2020, get gravity assistsfrom Earth and Venus, and arrive at the Saturn system in 2029. The 4-year prime mission would include a two-year Saturn tour, a 2-month Titan aero-sampling phase, and a 20-month Titan orbit phase. all know thst


Work towards realizing space tourism has moved forward a great deal in the last few years. Up until the end of 2000, only a few research papers had been published on the subject, and largely ignored.
There are now an increasing number of commercial enterprises starting up in the field. Even before the Ansari X Prize
was won, space tourism had begun to achieve a much greater impact in the public mid, and is now frequently visited of printed and broadcast media.
Entire conferences have been dedicated to space tourism, an idea that was unthinkable as little as 5 years ago, and the number of publications has dramatically increased to the point that they are no longer events of significance to add to the timeline.
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