Scientists are particularly interested in Saturn's moon Titan because it's one of the few known moons with its own dense atmosphere. Titan's atmosphere is also thought to be very similar to what Earth's atmosphere was a long time ago. By learning about Titan, we'll learn about our own planet.
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NASA Research Taskbook
NASA's Research Task Book includes reports of all peer-reviewed projects funded by the NASA Human System Research and Technology (HSRT) Office from FY 1995 to the present; internal research conducted at the NASA Centers; research supported by the National Space Biomedical Research Institute (NSBRI) http://peer1.nasaprs.com/peer_review/index.cfm
NASA Postdoctoral Program
The NASA Postdoctoral Program (NPP) offers unique research opportunities to highly talented national and international individuals who serve at NASA headquarters or other agency facilities. These one- to three-year appointments are competitive and are designed to advance NASA's mission. http://nasa.orau.org/postdoc/
NASA Faculty Fellowship Program
Fellowships for summer research in a NASA-university cooperative program are awarded to qualified engineering and science faculty members and some non-science disciplines http://www.asee.org/nffp/