What will it take to get humans to Mars? Science writer Andrew Fazekas sits down with two Mars experts, Jedidah Isler and Ray Arvidson, to talk about the challenges we face getting to and establishing a permanent settlement on the red planet.

Having helped design the Mars rovers Spirit, Opportunity, and Curiosity, NASA engineer Kobie Boykins reveals what these robots are telling us about the existence of life on the red planet.

Curiosity, the Mars rover, delivers new finds all the time. NASA scientist Pan Conrad is analyzing those findings in hopes of solving some of the many mysteries shrouding the red planet.

Malin Space Science Systems geologist Ken Edgett uses Curiosity, the Mars rover, to study the layers of rock on Mars, divulging secrets of the red planet's past and learning more about our own planet, Earth.

Mars is a rock lover's paradise and NASA geologist John Grant is searching for clues in the rocks for telltale signs of life in the red planet's past.

Marc Kaufman, author of the new National Geographic book Mars Up Close, reveals the fascinating background of Mars exploration and shares what the Mars rovers are teaching us every day.

Speleologist Penelope Boston studies bizarre life-forms in the deepest crevices of our home planet to understand what life might look like in harsh, extraterrestrial environments.

Dr. Natalie Batalha, a Kepler Mission scientist, is using technology that is out of this world—and out of this solar system—to locate exoplanets, some of which could be Earth-like planets that may be hosts to extraterrestrial life.

In the search for life beyond Earth, planetary scientist and National Geographic Emerging Explorer Kevin Hand looks to the ocean worlds of our solar system, like Jupiter's icy moon, Europa.

Ten years after the Cassini-Huygens spacecraft first captured incredible images from Saturn and its moons, Cassini Project scientist, Dr. Linda Spilker, reflects on a decade's worth of discoveries and what those revelations mean for our search for life beyond Earth.