Secrets in the Salt

Salt deposits that formed 250 million years ago hold tantalizing hints of early life.

Trapped in Salt

Biophysicist Jack Griffith takes you on a narrated photo tour of quarter-billion-year-old water bubbles.

Ask the Expert

Jack Griffith answers questions about cellulose, DNA, and other organic bits found in Permian salt deposits.

Martian Salt

If cellulose survived 250 million years on Earth, could it survive in salt deposits on Mars?

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© | Created April 2009