Is There Life on Mars? We Asked a NASA Scientist

Is there life on Mars? No, we have never discovered life on the Red Planet, but we have found lots of evidence that suggests Mars could have once supported life in its ancient past. There’s even a chance that Mars could be habitable beneath its surface. NASA astrobiologist Heather Graham explains more.

Producers: Scott Bednar, Jessica Wilde
Editor: Daniel Salazar

Credit: NASA