Educational astrobiology resource features articles and interviews on exobiology, planetary biology, the origins of life and human space flight.

Read about NASA's astrobiology program, including mission plans, tutorials and lectures. Look at the roadmap for further exploration.

Huge resource guide with collections of links on subjects such as exobiology and extrasolar planets. Plus news and a student and careers section.

Educational resource geared towards middle and high school students includes articles and pictures relating to exobiology.

Provides guidance for research and technology development in NASA's space science, earth science and human space exploration enterprises.

Bioastronomy directory points to resources on the origin of life, extraterrestrial life, Mars, meteorites and SETI.

Overview of a film about the search for life in the universe describes how life began on Earth and defines the "habitable zone."

Visit the exobiology section of SpaceDaily.com. Find news on SETI, extrasolar planets and life on Mars.

Study an overview of the thermosynthesis theory, which holds that thermal cycling is a powerful agent in the origin and evolution of life.