David Grinspoon

David Grinspoon is an astrobiologist and senior scientist at the Planetary Science Institute.

He has authored several books on planetary science and the search for extraterrestrial life.

Grinspoon's work focuses on comparative planetology and the potential for life beyond Earth.

He has a personal connection to Carl Sagan, who was a family friend and mentor.

Grinspoon is known for his optimistic outlook on humanity's future and our ability to address global challenges.

His expertise in planetary science informs his perspective on Earth's climate and potential geoengineering solutions.

Grinspoon also contributes to public understanding of science through writing, lectures, and media appearances.