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"What is the most widely accepted theory on how photosynthesis evolved from non-photosynthesis based life?"
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Organics Erupting from Enceladus
NASA’s Cassini spacecraft “tasted” and sampled a surprising organic brew erupting in geyser-like fashion from Saturn’s moon Enceladus during a close flyby on March 12. Scientists are amazed that this tiny moon is so active, “hot,” and brimming with water vapor and organic chemicals.
![Recent Articles](https://webarchive.library.unt.edu/eot2008/20090825135527im_/http://astrobiology.nasa.gov/img/text/hd_recent_mb.gif)
- Eating by Osmosis
- NAI Research Reveals Major Insight into Evolution of Life on Earth
- NASA Researchers Make First Discovery of Life's Building Block in Comet
- Roving the AMASEing Arctic
- SEPM Microbial Mat Conference Denver 2010
- AMASE 2009 expedition takes off in the Arctic
- AbSciCon 2010 First Announcement
- Living in a Dying Solar System, Part 2
- AbGradCon 2009: A Glimpse into Mixed-Reality Meetings of the Future
- Living in a Dying Solar System