![Physical geography / Astronomy / Glaciology / Ice ages / Faint young Sun paradox / Snowball Earth / Extraterrestrial life / Sun / Atmosphere of Earth / Historical geology / Climate history / Astrobiology Physical geography / Astronomy / Glaciology / Ice ages / Faint young Sun paradox / Snowball Earth / Extraterrestrial life / Sun / Atmosphere of Earth / Historical geology / Climate history / Astrobiology](https://www.pdfsearch.io/img/dcc0a7dbb03a42230586448ac50ebf06.jpg)
| Document Date: 2008-07-10 13:12:19 Open Document File Size: 1,50 MBShare Result on Facebook
Company Astrophysical Solutions / / IndustryTerm geothermal energy / / NaturalFeature Frozen Ocean / / Organization Smithsonian Center for Astrophysics & Montana State University Thanks to Jim Kasting / MIT / Harvard / / Person Ed Guinan / John Priscu / Richard Linzen / Bada / Norm Pace / / ProgrammingLanguage Piet / / PublishedMedium Scientific American / / URL http /
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