Community Account Renew Search

Back To Main Menu

Back To Main Menu

Back To Main Menu

Get Involved
Support Our Mission
The Planetary Fund

Accelerate progress in our three core enterprises — Explore Worlds, Find Life, and Defend Earth. You can support the entire fund, or designate a core enterprise of your choice.
Give Today

Back To Main Menu

About Us
The Planetary Society

Our Vision
Know the Cosmos and our place within it.
Our Mission
Empowering the world's citizens to advance space science and exploration.

Back To Main Menu

Membership

Our Work
Explore Space
Take Action
About
Membership
Member Community
Account Center
Search

“Exploration is in our nature.” - Carl Sagan

Caleb Scharf

Senior Scientist for Astrobiology, NASA Ames Research Center and Winner of the Carl Sagan Medal

Latest Planetary Radio Appearances

The Giant Leap book cover

Book Club Edition: The Giant Leap: Why Space is the Next Frontier in the Evolution of Life

Astrobiologist Caleb Scharf eloquently explores the future of humanity and what we will become when we live beyond Earth.

Browse All Shows

For full functionality of this site it is necessary to enable JavaScript. Here are instructions on how to enable JavaScript in your web browser.