The Search for Another Earth (#229)

A few paragraphs from Washington once stopped oil tankers in their tracks halfway around the world - no navy, no missiles. Eddie Fishman, who helped design and implement U.S. sanctions and economic warfare policies, explains how these quiet battles shape global power. If countrie ...  Show more

Scientists are finding tiny fragments of plastic inside the human body - including the brain.Dr. Matthew Campen of the University of New Mexico explains how they get there - and why the biggest source may surprise you. 

Are we alone in the universe? It's a question studied in science fiction, but also by teams here at NASA. Join us as we search for signs of life outside of Earth with scientists Aki Roberge, Ravi Kopparapu, and Shawn Domagal-Goldman. 

Astrophysicist Lisa Kaltenegger explores the thrilling possibility of discovering life beyond Earth, highlighting how cutting-edge technology like the James Webb Space Telescope lets us analyze distant planets for signs of life in unprecedented detail. Could examining these "alie ...  Show more

Why have we not yet found proof of alien life? According to astrophysicist Avi Loeb, we simply haven't dedicated the proper resources. Diving into unidentified phenomena such as the Oumuamua asteroid, he explores his scientific search for extraterrestrial technology, envisioning ...  Show more

NASA has a record of Earth observations going back more than 50 years. What might be in store for the next 50 years? In this finale of our Earth series, we hear from two scientists helping to chart the course of NASA Earth science. There are still many unanswered questions about ...  Show more