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The Universe at Your Fingertips 2.0 DVD from the Astronomical Society of the Pacific is in our online store, filled with Earth and space science resources.
Photograph of Carl Sagan
Robert Reichert and Cornell University.

Carl Sagan

Carl Sagan is an American astronomer who was born in 1934. He is famous for his research on the origins of life and his belief that life exists elsewhere in the universe.

Sagan became a leading figure in the search for extraterrestrial intelligence with his involvement in the Mariner, Viking, and Voyager spacecraft expeditions to Venus and the outer planets. He has made valuable contributions to the study of planetary atmospheres, planetary surfaces, and the history of Earth.

Sagan passed away on December 20, 1996.


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Our online store includes issues of NESTA's quarterly journal, The Earth Scientist, full of classroom activities on different topics in Earth and space science, ranging from seismology, rocks and minerals, oceanography, and Earth system science to astronomy!

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Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part by the National Science Foundation and NASA, our Founding Partners (the American Geophysical Union and American Geosciences Institute) as well as through Institutional, Contributing, and Affiliate Partners, individual memberships and generous donors. Thank you for your support! NASA AGU AGI NSF